51397060 has 48 divisors (see below), whose sum is σ = 126810432. Its totient is φ = 17251200.

The previous prime is 51397051. The next prime is 51397061. The reversal of 51397060 is 6079315.

It is not an unprimeable number, because it can be changed into a prime (51397061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6126 + ... + 11845.

It is an arithmetic number, because the mean of its divisors is an integer number (2641884).

Almost surely, 2^51397060 is an apocalyptic number.

It is an amenable number.

51397060 is an abundant number, since it is smaller than the sum of its proper divisors (75413372).

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

51397060 is a wasteful number, since it uses less digits than its factorization.

51397060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18004 (or 18002 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 51397060 is about 7169.1742899723. The cubic root of 51397060 is about 371.8028882136.

The spelling of 51397060 in words is "fifty-one million, three hundred ninety-seven thousand, sixty".