55432464 has 40 divisors (see below), whose sum is σ = 147823872. Its totient is φ = 17880960.

The previous prime is 55432459. The next prime is 55432471. The reversal of 55432464 is 46423455.

It is a super-2 number, since 2×55432464² = 6145516130222592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17139 + ... + 20114.

Almost surely, 2^55432464 is an apocalyptic number.

It is an amenable number.

55432464 is an abundant number, since it is smaller than the sum of its proper divisors (92391408).

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

55432464 is a wasteful number, since it uses less digits than its factorization.

55432464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37295 (or 37289 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 55432464 is about 7445.2981135748. The cubic root of 55432464 is about 381.2893964842.

Subtracting from 55432464 its reverse (46423455), we obtain a palindrome (9009009).

The spelling of 55432464 in words is "fifty-five million, four hundred thirty-two thousand, four hundred sixty-four".