23527534531 has 2 divisors, whose sum is σ = 23527534532. Its totient is φ = 23527534530.

The previous prime is 23527534501. The next prime is 23527534543. The reversal of 23527534531 is 13543572532.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23527534531 - 2²¹ = 23525437379 is a prime.

It is a super-2 number, since 2×23527534531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23527534501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11763767265 + 11763767266.

It is an arithmetic number, because the mean of its divisors is an integer number (11763767266).

Almost surely, 2^23527534531 is an apocalyptic number.

23527534531 is a deficient number, since it is larger than the sum of its proper divisors (1).

23527534531 is an equidigital number, since it uses as much as digits as its factorization.

23527534531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 40.

The spelling of 23527534531 in words is "twenty-three billion, five hundred twenty-seven million, five hundred thirty-four thousand, five hundred thirty-one".