51027015 has 24 divisors (see below), whose sum is σ = 88410960. Its totient is φ = 25119744.

The previous prime is 51026981. The next prime is 51027089. The reversal of 51027015 is 51072015.

It is not a de Polignac number, because 51027015 - 2¹⁵ = 50994247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51026982 and 51027000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7530 + ... + 12599.

It is an arithmetic number, because the mean of its divisors is an integer number (3683790).

Almost surely, 2^51027015 is an apocalyptic number.

51027015 is a deficient number, since it is larger than the sum of its proper divisors (37383945).

51027015 is a wasteful number, since it uses less digits than its factorization.

51027015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20163 (or 20150 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 51027015 is about 7143.3196064575. The cubic root of 51027015 is about 370.9084446039.

The spelling of 51027015 in words is "fifty-one million, twenty-seven thousand, fifteen".