55013432 has 32 divisors (see below), whose sum is σ = 105423120. Its totient is φ = 26906880.

The previous prime is 55013407. The next prime is 55013449. The reversal of 55013432 is 23431055.

It is a junction number, because it is equal to n+sod(n) for n = 55013398 and 55013407.

It is a congruent number.

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, 105332 + ... + 105852.

Almost surely, 2^55013432 is an apocalyptic number.

It is an amenable number.

55013432 is a deficient number, since it is larger than the sum of its proper divisors (50409688).

55013432 is a wasteful number, since it uses less digits than its factorization.

55013432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 55013432 is about 7417.1040170676. The cubic root of 55013432 is about 380.3262018941.

Adding to 55013432 its reverse (23431055), we get a palindrome (78444487).

The spelling of 55013432 in words is "fifty-five million, thirteen thousand, four hundred thirty-two".