51531101421150 has 96 divisors (see below), whose sum is σ = 137797805063520. Its totient is φ = 12668899092480.

The previous prime is 51531101421133. The next prime is 51531101421179. The reversal of 51531101421150 is 5112410113515.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14755087 + ... + 17910186.

It is an arithmetic number, because the mean of its divisors is an integer number (1435393802745).

Almost surely, 2^{51531101421150} is an apocalyptic number.

51531101421150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51531101421150 is an abundant number, since it is smaller than the sum of its proper divisors (86266703642370).

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

51531101421150 is a wasteful number, since it uses less digits than its factorization.

51531101421150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32666110 (or 32666105 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 30.

Adding to 51531101421150 its reverse (5112410113515), we get a palindrome (56643511534665).

The spelling of 51531101421150 in words is "fifty-one trillion, five hundred thirty-one billion, one hundred one million, four hundred twenty-one thousand, one hundred fifty".