51552156601 has 9 divisors (see below), whose sum is σ = 56667512559. Its totient is φ = 46863326400.

The previous prime is 51552156563. The next prime is 51552156629. The reversal of 51552156601 is 10665125515.

The square root of 51552156601 is 227051.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8054883001 + 43497273600 = 89749^2 + 208560^2 .

It is not a de Polignac number, because 51552156601 - 2⁷ = 51552156473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51552106601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2487241 + ... + 2507881.

Almost surely, 2^51552156601 is an apocalyptic number.

51552156601 is the 227051-st square number.

51552156601 is the 113526-th centered octagonal number.

It is an amenable number.

51552156601 is a deficient number, since it is larger than the sum of its proper divisors (5115355958).

51552156601 is an frugal number, since it uses more digits than its factorization.

51552156601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41304 (or 20652 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 51552156601 in words is "fifty-one billion, five hundred fifty-two million, one hundred fifty-six thousand, six hundred one".