51100201515 has 24 divisors (see below), whose sum is σ = 89868787344. Its totient is φ = 24775854400.

The previous prime is 51100201501. The next prime is 51100201561. The reversal of 51100201515 is 51510200115.

It is not a de Polignac number, because 51100201515 - 2¹⁵ = 51100168747 is a prime.

It is a super-2 number, since 2×51100201515² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51100201491 and 51100201500.

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, 14075376 + ... + 14079005.

It is an arithmetic number, because the mean of its divisors is an integer number (3744532806).

Almost surely, 2^51100201515 is an apocalyptic number.

51100201515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51100201515 is a deficient number, since it is larger than the sum of its proper divisors (38768585829).

51100201515 is a wasteful number, since it uses less digits than its factorization.

51100201515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28154411 (or 28154400 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 21.

The spelling of 51100201515 in words is "fifty-one billion, one hundred million, two hundred one thousand, five hundred fifteen".