53450712 has 256 divisors, whose sum is σ = 186624000. Its totient is φ = 13837824.

The previous prime is 53450711. The next prime is 53450713. The reversal of 53450712 is 21705435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53450711) and next prime (53450713).

It is a super-2 number, since 2×53450712² = 5713957226613888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1008478 + ... + 1008530.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 2^53450712 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 53450712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93312000).

53450712 is an abundant number, since it is smaller than the sum of its proper divisors (133173288).

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

53450712 is a wasteful number, since it uses less digits than its factorization.

53450712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 53450712 is about 7310.9993844891. Note that the first 3 decimals coincide. The cubic root of 53450712 is about 376.6903531019.

The spelling of 53450712 in words is "fifty-three million, four hundred fifty thousand, seven hundred twelve".