51474366 has 20 divisors (see below), whose sum is σ = 115341072. Its totient is φ = 17158068.

The previous prime is 51474349. The next prime is 51474403. The reversal of 51474366 is 66347415.

It is a happy number.

It is a super-2 number, since 2×51474366² = 5299220710203912, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51474366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 158710 + ... + 159033.

Almost surely, 2^51474366 is an apocalyptic number.

51474366 is an abundant number, since it is smaller than the sum of its proper divisors (63866706).

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

51474366 is a wasteful number, since it uses less digits than its factorization.

51474366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317757 (or 317748 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 51474366 is about 7174.5638194945. The cubic root of 51474366 is about 371.9892036409.

The spelling of 51474366 in words is "fifty-one million, four hundred seventy-four thousand, three hundred sixty-six".