51102020533154 has 16 divisors (see below), whose sum is σ = 76714059909120. Its totient is φ = 25530667804080.

The previous prime is 51102020533133. The next prime is 51102020533243. The reversal of 51102020533154 is 45133502020115.

It is a super-2 number, since 2×51102020533154² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51102020533154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312329312 + ... + 312492884.

It is an arithmetic number, because the mean of its divisors is an integer number (4794628744320).

Almost surely, 2^{51102020533154} is an apocalyptic number.

51102020533154 is a deficient number, since it is larger than the sum of its proper divisors (25612039375966).

51102020533154 is a wasteful number, since it uses less digits than its factorization.

51102020533154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286985.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 51102020533154 its reverse (45133502020115), we get a palindrome (96235522553269).

The spelling of 51102020533154 in words is "fifty-one trillion, one hundred two billion, twenty million, five hundred thirty-three thousand, one hundred fifty-four".