51111502150 has 48 divisors (see below), whose sum is σ = 103380186816. Its totient is φ = 18721912320.

The previous prime is 51111502109. The next prime is 51111502151. The reversal of 51111502150 is 5120511115.

It is a super-2 number, since 2×51111502150² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111502151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 781134 + ... + 844033.

It is an arithmetic number, because the mean of its divisors is an integer number (2153753892).

Almost surely, 2^51111502150 is an apocalyptic number.

51111502150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51111502150 is an abundant number, since it is smaller than the sum of its proper divisors (52268684666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51111502150 is a wasteful number, since it uses less digits than its factorization.

51111502150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625233 (or 1625228 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 22.

The spelling of 51111502150 in words is "fifty-one billion, one hundred eleven million, five hundred two thousand, one hundred fifty".