15531425023 has 2 divisors, whose sum is σ = 15531425024. Its totient is φ = 15531425022.

The previous prime is 15531425011. The next prime is 15531425053. The reversal of 15531425023 is 32052413551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15531425023 - 2²⁹ = 14994554111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15531425053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7765712511 + 7765712512.

It is an arithmetic number, because the mean of its divisors is an integer number (7765712512).

Almost surely, 2^15531425023 is an apocalyptic number.

15531425023 is a deficient number, since it is larger than the sum of its proper divisors (1).

15531425023 is an equidigital number, since it uses as much as digits as its factorization.

15531425023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 15531425023 its reverse (32052413551), we get a palindrome (47583838574).

The spelling of 15531425023 in words is "fifteen billion, five hundred thirty-one million, four hundred twenty-five thousand, twenty-three".