55738431 has 36 divisors (see below), whose sum is σ = 94693872. Its totient is φ = 31497984.

The previous prime is 55738409. The next prime is 55738447. The reversal of 55738431 is 13483755.

55738431 is a `hidden beast` number, since 5 + 573 + 84 + 3 + 1 = 666.

It is not a de Polignac number, because 55738431 - 2⁵ = 55738399 is a prime.

It is a super-2 number, since 2×55738431² = 6213545380683522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55738451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42126 + ... + 43428.

Almost surely, 2^55738431 is an apocalyptic number.

55738431 is a deficient number, since it is larger than the sum of its proper divisors (38955441).

55738431 is a wasteful number, since it uses less digits than its factorization.

55738431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1410 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55738431 is about 7465.8175037969. The cubic root of 55738431 is about 381.9896358764.

It can be divided in two parts, 55738 and 431, that added together give a square (56169 = 237²).

The spelling of 55738431 in words is "fifty-five million, seven hundred thirty-eight thousand, four hundred thirty-one".