51675860 has 12 divisors (see below), whose sum is σ = 108519348. Its totient is φ = 20670336.

The previous prime is 51675857. The next prime is 51675907. The reversal of 51675860 is 6857615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28366276 + 23309584 = 5326^2 + 4828^2 .

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, 1291877 + ... + 1291916.

It is an arithmetic number, because the mean of its divisors is an integer number (9043279).

Almost surely, 2^51675860 is an apocalyptic number.

It is an amenable number.

51675860 is an abundant number, since it is smaller than the sum of its proper divisors (56843488).

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

51675860 is a wasteful number, since it uses less digits than its factorization.

51675860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583802 (or 2583800 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 51675860 is about 7188.5923517751. The cubic root of 51675860 is about 372.4739498021.

The spelling of 51675860 in words is "fifty-one million, six hundred seventy-five thousand, eight hundred sixty".