5121972550 has 24 divisors (see below), whose sum is σ = 9529468200. Its totient is φ = 2048230080.

The previous prime is 5121972539. The next prime is 5121972587. The reversal of 5121972550 is 552791215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205146 + ... + 228754.

It is an arithmetic number, because the mean of its divisors is an integer number (397061175).

Almost surely, 2^5121972550 is an apocalyptic number.

5121972550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5121972550 is a deficient number, since it is larger than the sum of its proper divisors (4407495650).

5121972550 is a wasteful number, since it uses less digits than its factorization.

5121972550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27960 (or 27955 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 5121972550 is about 71567.9575648209. The cubic root of 5121972550 is about 1723.7690637187.

The spelling of 5121972550 in words is "five billion, one hundred twenty-one million, nine hundred seventy-two thousand, five hundred fifty".