55438371 has 32 divisors (see below), whose sum is σ = 88128000. Its totient is φ = 34336224.

The previous prime is 55438363. The next prime is 55438373. The reversal of 55438371 is 17383455.

55438371 is a `hidden beast` number, since 554 + 38 + 3 + 71 = 666.

It is not a de Polignac number, because 55438371 - 2³ = 55438363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55438373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26170 + ... + 28208.

It is an arithmetic number, because the mean of its divisors is an integer number (2754000).

Almost surely, 2^55438371 is an apocalyptic number.

55438371 is a deficient number, since it is larger than the sum of its proper divisors (32689629).

55438371 is a wasteful number, since it uses less digits than its factorization.

55438371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2114 counting only the distinct ones).

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

The square root of 55438371 is about 7445.6947963236. The cubic root of 55438371 is about 381.3029396700.

The spelling of 55438371 in words is "fifty-five million, four hundred thirty-eight thousand, three hundred seventy-one".