51169086 has 12 divisors (see below), whose sum is σ = 110866392. Its totient is φ = 17056356.

The previous prime is 51169067. The next prime is 51169093. The reversal of 51169086 is 68096115.

51169086 is a `hidden beast` number, since 511 + 69 + 0 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51169086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1421346 + ... + 1421381.

It is an arithmetic number, because the mean of its divisors is an integer number (9238866).

Almost surely, 2^51169086 is an apocalyptic number.

51169086 is an abundant number, since it is smaller than the sum of its proper divisors (59697306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51169086 is a wasteful number, since it uses less digits than its factorization.

51169086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842735 (or 2842732 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 51169086 is about 7153.2570204069. The cubic root of 51169086 is about 371.2523572275.

The spelling of 51169086 in words is "fifty-one million, one hundred sixty-nine thousand, eighty-six".