54335640 has 32 divisors (see below), whose sum is σ = 163007280. Its totient is φ = 14489472.

The previous prime is 54335627. The next prime is 54335641. The reversal of 54335640 is 4653345.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54335598 and 54335607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54335641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226279 + ... + 226518.

Almost surely, 2^54335640 is an apocalyptic number.

It is an amenable number.

54335640 is an abundant number, since it is smaller than the sum of its proper divisors (108671640).

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

54335640 is a wasteful number, since it uses less digits than its factorization.

54335640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452811 (or 452807 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 54335640 is about 7371.2712607799. The cubic root of 54335640 is about 378.7578089862.

Adding to 54335640 its reverse (4653345), we get a palindrome (58988985).

The spelling of 54335640 in words is "fifty-four million, three hundred thirty-five thousand, six hundred forty".