51224412415 has 32 divisors (see below), whose sum is σ = 68650560000. Its totient is φ = 36369889920.

The previous prime is 51224412403. The next prime is 51224412439. The reversal of 51224412415 is 51421442215.

It is not a de Polignac number, because 51224412415 - 2⁵ = 51224412383 is a prime.

It is a super-2 number, since 2×51224412415² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6497446 + ... + 6505324.

It is an arithmetic number, because the mean of its divisors is an integer number (2145330000).

Almost surely, 2^51224412415 is an apocalyptic number.

51224412415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51224412415 is a deficient number, since it is larger than the sum of its proper divisors (17426147585).

51224412415 is a wasteful number, since it uses less digits than its factorization.

51224412415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687.

The product of its digits is 12800, while the sum is 31.

The spelling of 51224412415 in words is "fifty-one billion, two hundred twenty-four million, four hundred twelve thousand, four hundred fifteen".