23251553501 has 16 divisors (see below), whose sum is σ = 26241316416. Its totient is φ = 20418000000.

The previous prime is 23251553473. The next prime is 23251553537. The reversal of 23251553501 is 10535515232.

It is not a de Polignac number, because 23251553501 - 2²² = 23247359197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23251550501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209675 + ... + 300776.

It is an arithmetic number, because the mean of its divisors is an integer number (1640082276).

Almost surely, 2^23251553501 is an apocalyptic number.

It is an amenable number.

23251553501 is a deficient number, since it is larger than the sum of its proper divisors (2989762915).

23251553501 is a wasteful number, since it uses less digits than its factorization.

23251553501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510604.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 23251553501 in words is "twenty-three billion, two hundred fifty-one million, five hundred fifty-three thousand, five hundred one".