51713580 has 48 divisors (see below), whose sum is σ = 149474304. Its totient is φ = 13344960.

The previous prime is 51713569. The next prime is 51713581. The reversal of 51713580 is 8531715.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (51713581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12042 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (3114048).

Almost surely, 2^51713580 is an apocalyptic number.

It is an amenable number.

51713580 is an abundant number, since it is smaller than the sum of its proper divisors (97760724).

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

51713580 is a wasteful number, since it uses less digits than its factorization.

51713580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27846 (or 27844 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 51713580 is about 7191.2154744521. The cubic root of 51713580 is about 372.5645549725.

The spelling of 51713580 in words is "fifty-one million, seven hundred thirteen thousand, five hundred eighty".