51352535431 has 8 divisors (see below), whose sum is σ = 54441747584. Its totient is φ = 48352865760.

The previous prime is 51352535419. The next prime is 51352535449. The reversal of 51352535431 is 13453525315.

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

It is a cyclic number.

It is not a de Polignac number, because 51352535431 - 2⁷ = 51352535303 is a prime.

It is a super-2 number, since 2×51352535431² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51352535491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22384440 + ... + 22386733.

It is an arithmetic number, because the mean of its divisors is an integer number (6805218448).

Almost surely, 2^51352535431 is an apocalyptic number.

51352535431 is a deficient number, since it is larger than the sum of its proper divisors (3089212153).

51352535431 is a wasteful number, since it uses less digits than its factorization.

51352535431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44771241.

The product of its digits is 135000, while the sum is 37.

The spelling of 51352535431 in words is "fifty-one billion, three hundred fifty-two million, five hundred thirty-five thousand, four hundred thirty-one".