23522503402557 has 12 divisors (see below), whose sum is σ = 33977422793340. Its totient is φ = 15681450427008.

The previous prime is 23522503402547. The next prime is 23522503402561. The reversal of 23522503402557 is 75520430522532.

23522503402557 is a `hidden beast` number, since 2 + 3 + 5 + 2 + 2 + 50 + 3 + 40 + 2 + 557 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14251976482041 + 9270526920516 = 3775179^2 + 3044754^2 .

It is not a de Polignac number, because 23522503402557 - 2¹⁹ = 23522502878269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23522503402547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17525868 + ... + 18820229.

It is an arithmetic number, because the mean of its divisors is an integer number (2831451899445).

Almost surely, 2^{23522503402557} is an apocalyptic number.

It is an amenable number.

23522503402557 is a deficient number, since it is larger than the sum of its proper divisors (10454919390783).

23522503402557 is a wasteful number, since it uses less digits than its factorization.

23522503402557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36418012 (or 36418009 counting only the distinct ones).

The product of its (nonzero) digits is 2520000, while the sum is 45.

The spelling of 23522503402557 in words is "twenty-three trillion, five hundred twenty-two billion, five hundred three million, four hundred two thousand, five hundred fifty-seven".