51670612 has 12 divisors (see below), whose sum is σ = 103341280. Its totient is φ = 22144536.

The previous prime is 51670603. The next prime is 51670631. The reversal of 51670612 is 21607615.

51670612 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1845379 = 51670612 / (5 + 1 + 6 + 7 + 0 + 6 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922662 + ... + 922717.

Almost surely, 2^51670612 is an apocalyptic number.

It is an amenable number.

51670612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51670612 is a wasteful number, since it uses less digits than its factorization.

51670612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845390 (or 1845388 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51670612 is about 7188.2273197222. The cubic root of 51670612 is about 372.4613403718.

The spelling of 51670612 in words is "fifty-one million, six hundred seventy thousand, six hundred twelve".