51788867 has 12 divisors (see below), whose sum is σ = 58018320. Its totient is φ = 46152288.

The previous prime is 51788857. The next prime is 51788873. The reversal of 51788867 is 76888715.

It is not a de Polignac number, because 51788867 - 2²⁴ = 35011651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51788827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (4834860).

Almost surely, 2^51788867 is an apocalyptic number.

51788867 is a deficient number, since it is larger than the sum of its proper divisors (6229453).

51788867 is a wasteful number, since it uses less digits than its factorization.

51788867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10622 (or 10609 counting only the distinct ones).

The product of its digits is 752640, while the sum is 50.

The square root of 51788867 is about 7196.4482211713. The cubic root of 51788867 is about 372.7452661568.

It can be divided in two parts, 5 and 1788867, that multiplied together give a triangular number (8944335 = T₄₂₂₉).

The spelling of 51788867 in words is "fifty-one million, seven hundred eighty-eight thousand, eight hundred sixty-seven".