51552552531 has 8 divisors (see below), whose sum is σ = 68746546624. Its totient is φ = 34363463400.

The previous prime is 51552552511. The next prime is 51552552533. The reversal of 51552552531 is 13525525515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-51552552531 is a prime.

It is a super-2 number, since 2×51552552531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51552552531.

It is not an unprimeable number, because it can be changed into a prime (51552552533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201645 + ... + 1243806.

It is an arithmetic number, because the mean of its divisors is an integer number (8593318328).

Almost surely, 2^51552552531 is an apocalyptic number.

51552552531 is a deficient number, since it is larger than the sum of its proper divisors (17193994093).

51552552531 is a wasteful number, since it uses less digits than its factorization.

51552552531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452481.

The product of its digits is 187500, while the sum is 39.

The spelling of 51552552531 in words is "fifty-one billion, five hundred fifty-two million, five hundred fifty-two thousand, five hundred thirty-one".