51025254515 has 16 divisors (see below), whose sum is σ = 63570415680. Its totient is φ = 39270295680.

The previous prime is 51025254493. The next prime is 51025254569. The reversal of 51025254515 is 51545252015.

It is not a de Polignac number, because 51025254515 - 2⁶ = 51025254451 is a prime.

It is a super-4 number, since 4×51025254515⁴ (a number of 44 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595031 + ... + 675360.

It is an arithmetic number, because the mean of its divisors is an integer number (3973150980).

Almost surely, 2^51025254515 is an apocalyptic number.

51025254515 is a deficient number, since it is larger than the sum of its proper divisors (12545161165).

51025254515 is a wasteful number, since it uses less digits than its factorization.

51025254515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270702.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 51025254515 in words is "fifty-one billion, twenty-five million, two hundred fifty-four thousand, five hundred fifteen".