51425511552415 has 64 divisors (see below), whose sum is σ = 82858280601600. Its totient is φ = 29590763235840.

The previous prime is 51425511552407. The next prime is 51425511552427.

51425511552415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51425511552415 - 2³ = 51425511552407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 247889062 + ... + 248096428.

It is an arithmetic number, because the mean of its divisors is an integer number (1294660634400).

Almost surely, 2^{51425511552415} is an apocalyptic number.

51425511552415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51425511552415 is a deficient number, since it is larger than the sum of its proper divisors (31432769049185).

51425511552415 is a wasteful number, since it uses less digits than its factorization.

51425511552415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256952.

The product of its digits is 1000000, while the sum is 46.

It can be divided in two parts, 5142551 and 1552415, that added together give a palindrome (6694966).

The spelling of 51425511552415 in words is "fifty-one trillion, four hundred twenty-five billion, five hundred eleven million, five hundred fifty-two thousand, four hundred fifteen".