23521240625040 has 60 divisors (see below), whose sum is σ = 78992166434844. Its totient is φ = 6272330833152.

The previous prime is 23521240625023. The next prime is 23521240625089. The reversal of 23521240625040 is 4052604212532.

23521240625040 is a `hidden beast` number, since 2 + 3 + 5 + 2 + 1 + 24 + 0 + 625 + 0 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14910842439936 + 8610398185104 = 3861456^2 + 2934348^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23521240624986 and 23521240625004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16334194159 + ... + 16334195598.

Almost surely, 2^{23521240625040} is an apocalyptic number.

23521240625040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23521240625040 is an abundant number, since it is smaller than the sum of its proper divisors (55470925809804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23521240625040 is a wasteful number, since it uses less digits than its factorization.

23521240625040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32668389776 (or 32668389767 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 23521240625040 its reverse (4052604212532), we get a palindrome (27573844837572).

The spelling of 23521240625040 in words is "twenty-three trillion, five hundred twenty-one billion, two hundred forty million, six hundred twenty-five thousand, forty".