50145513531 has 16 divisors (see below), whose sum is σ = 69176540160. Its totient is φ = 32272758560.

The previous prime is 50145513521. The next prime is 50145513559. The reversal of 50145513531 is 13531554105.

It is a cyclic number.

It is not a de Polignac number, because 50145513531 - 2⁵ = 50145513499 is a prime.

It is a super-2 number, since 2×50145513531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50145513492 and 50145513501.

It is not an unprimeable number, because it can be changed into a prime (50145513521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598486 + ... + 677108.

It is an arithmetic number, because the mean of its divisors is an integer number (4323533760).

Almost surely, 2^50145513531 is an apocalyptic number.

50145513531 is a deficient number, since it is larger than the sum of its proper divisors (19031026629).

50145513531 is a wasteful number, since it uses less digits than its factorization.

50145513531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85986.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 50145513531 in words is "fifty billion, one hundred forty-five million, five hundred thirteen thousand, five hundred thirty-one".