43072625531 has 4 divisors (see below), whose sum is σ = 46385904432. Its totient is φ = 39759346632.

The previous prime is 43072625509. The next prime is 43072625537. The reversal of 43072625531 is 13552627034.

43072625531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43072625531 is a prime.

It is a super-2 number, since 2×43072625531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43072625537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656639431 + ... + 1656639456.

It is an arithmetic number, because the mean of its divisors is an integer number (11596476108).

Almost surely, 2^43072625531 is an apocalyptic number.

43072625531 is a deficient number, since it is larger than the sum of its proper divisors (3313278901).

43072625531 is a wasteful number, since it uses less digits than its factorization.

43072625531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313278900.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 43072625531 in words is "forty-three billion, seventy-two million, six hundred twenty-five thousand, five hundred thirty-one".