51888831 has 8 divisors (see below), whose sum is σ = 70794240. Its totient is φ = 33787992.

The previous prime is 51888797. The next prime is 51888841. The reversal of 51888831 is 13888815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51888831 - 2⁷ = 51888703 is a prime.

It is a super-2 number, since 2×51888831² = 5384901565093122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200991 + ... + 201248.

It is an arithmetic number, because the mean of its divisors is an integer number (8849280).

Almost surely, 2^51888831 is an apocalyptic number.

51888831 is a deficient number, since it is larger than the sum of its proper divisors (18905409).

51888831 is a wasteful number, since it uses less digits than its factorization.

51888831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402285.

The product of its digits is 61440, while the sum is 42.

The square root of 51888831 is about 7203.3902434895. The cubic root of 51888831 is about 372.9849390282.

The spelling of 51888831 in words is "fifty-one million, eight hundred eighty-eight thousand, eight hundred thirty-one".