51616602 has 24 divisors (see below), whose sum is σ = 115979136. Its totient is φ = 17205372.

The previous prime is 51616583. The next prime is 51616667. The reversal of 51616602 is 20661615.

It is a happy number.

51616602 is a `hidden beast` number, since 51 + 6 + 1 + 6 + 602 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52618 + ... + 53589.

It is an arithmetic number, because the mean of its divisors is an integer number (4832464).

Almost surely, 2^51616602 is an apocalyptic number.

51616602 is an abundant number, since it is smaller than the sum of its proper divisors (64362534).

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

51616602 is a wasteful number, since it uses less digits than its factorization.

51616602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106224 (or 106212 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51616602 is about 7184.4695002484. The cubic root of 51616602 is about 372.3315202837.

The spelling of 51616602 in words is "fifty-one million, six hundred sixteen thousand, six hundred two".