52654140 has 288 divisors, whose sum is σ = 207567360. Its totient is φ = 10483200.

The previous prime is 52654139. The next prime is 52654141. The reversal of 52654140 is 4145625.

52654140 is a `hidden beast` number, since 5 + 2 + 654 + 1 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (52654139) and next prime (52654141).

It is a super-3 number, since 3×52654140³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52654141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 401875 + ... + 402005.

It is an arithmetic number, because the mean of its divisors is an integer number (720720).

Almost surely, 2^52654140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52654140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103783680).

52654140 is an abundant number, since it is smaller than the sum of its proper divisors (154913220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52654140 is a wasteful number, since it uses less digits than its factorization.

52654140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 52654140 is about 7256.3172477504. The cubic root of 52654140 is about 374.8097167958.

Adding to 52654140 its reverse (4145625), we get a palindrome (56799765).

The spelling of 52654140 in words is "fifty-two million, six hundred fifty-four thousand, one hundred forty".