55397352 has 16 divisors (see below), whose sum is σ = 138493440. Its totient is φ = 18465776.

The previous prime is 55397351. The next prime is 55397357. The reversal of 55397352 is 25379355.

It is a super-2 number, since 2×55397352² = 6137733217223808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55397352.

It is not an unprimeable number, because it can be changed into a prime (55397351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154088 + ... + 1154135.

It is an arithmetic number, because the mean of its divisors is an integer number (8655840).

Almost surely, 2^55397352 is an apocalyptic number.

It is an amenable number.

55397352 is an abundant number, since it is smaller than the sum of its proper divisors (83096088).

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

55397352 is a wasteful number, since it uses less digits than its factorization.

55397352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308232 (or 2308228 counting only the distinct ones).

The product of its digits is 141750, while the sum is 39.

The square root of 55397352 is about 7442.9397417956. The cubic root of 55397352 is about 381.2088741091.

The spelling of 55397352 in words is "fifty-five million, three hundred ninety-seven thousand, three hundred fifty-two".