51397602 has 16 divisors (see below), whose sum is σ = 104982912. Its totient is φ = 16767920.

The previous prime is 51397601. The next prime is 51397607. The reversal of 51397602 is 20679315.

It is a super-3 number, since 3×51397602³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51397601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90849 + ... + 91412.

It is an arithmetic number, because the mean of its divisors is an integer number (6561432).

Almost surely, 2^51397602 is an apocalyptic number.

51397602 is an abundant number, since it is smaller than the sum of its proper divisors (53585310).

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

51397602 is a wasteful number, since it uses less digits than its factorization.

51397602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182313.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 51397602 is about 7169.2120905996. The cubic root of 51397602 is about 371.8041951396.

The spelling of 51397602 in words is "fifty-one million, three hundred ninety-seven thousand, six hundred two".