51282015 has 20 divisors (see below), whose sum is σ = 84004824. Its totient is φ = 26714352.

The previous prime is 51281987. The next prime is 51282053. The reversal of 51282015 is 51028215.

It is not a de Polignac number, because 51282015 - 2⁵ = 51281983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1192584 + ... + 1192626.

Almost surely, 2^51282015 is an apocalyptic number.

51282015 is a deficient number, since it is larger than the sum of its proper divisors (32722809).

51282015 is an frugal number, since it uses more digits than its factorization.

51282015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 51282015 is about 7161.1462071375. The cubic root of 51282015 is about 371.5252717016.

The spelling of 51282015 in words is "fifty-one million, two hundred eighty-two thousand, fifteen".