51085460 has 12 divisors (see below), whose sum is σ = 107279508. Its totient is φ = 20434176.

The previous prime is 51085457. The next prime is 51085477. The reversal of 51085460 is 6458015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14531344 + 36554116 = 3812^2 + 6046^2 .

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, 1277117 + ... + 1277156.

It is an arithmetic number, because the mean of its divisors is an integer number (8939959).

Almost surely, 2^51085460 is an apocalyptic number.

It is an amenable number.

51085460 is an abundant number, since it is smaller than the sum of its proper divisors (56194048).

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

51085460 is a wasteful number, since it uses less digits than its factorization.

51085460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554282 (or 2554280 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 51085460 is about 7147.4093208658. The cubic root of 51085460 is about 371.0500001631.

The spelling of 51085460 in words is "fifty-one million, eighty-five thousand, four hundred sixty".