51055000561050 has 48 divisors (see below), whose sum is σ = 126616883417472. Its totient is φ = 13614614985600.

The previous prime is 51055000561027. The next prime is 51055000561051. The reversal of 51055000561050 is 5016500055015.

It is a super-2 number, since 2×51055000561050² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51055000561051) 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, 54454230 + ... + 55383870.

It is an arithmetic number, because the mean of its divisors is an integer number (2637851737864).

Almost surely, 2^{51055000561050} is an apocalyptic number.

51055000561050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51055000561050 is an abundant number, since it is smaller than the sum of its proper divisors (75561882856422).

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

51055000561050 is a wasteful number, since it uses less digits than its factorization.

51055000561050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295783 (or 1295778 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 51055000561050 in words is "fifty-one trillion, fifty-five billion, five hundred sixty-one thousand, fifty".