51932155 has 16 divisors (see below), whose sum is σ = 68343264. Its totient is φ = 37569280.

The previous prime is 51932147. The next prime is 51932173. The reversal of 51932155 is 55123915.

It is not a de Polignac number, because 51932155 - 2³ = 51932147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8439 + ... + 13231.

It is an arithmetic number, because the mean of its divisors is an integer number (4271454).

Almost surely, 2^51932155 is an apocalyptic number.

51932155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51932155 is a deficient number, since it is larger than the sum of its proper divisors (16411109).

51932155 is a wasteful number, since it uses less digits than its factorization.

51932155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

The product of its digits is 6750, while the sum is 31.

The square root of 51932155 is about 7206.3968111671. The cubic root of 51932155 is about 373.0887166875.

The spelling of 51932155 in words is "fifty-one million, nine hundred thirty-two thousand, one hundred fifty-five".