23521530424253 has 48 divisors (see below), whose sum is σ = 25260062256000. Its totient is φ = 21896396565120.

The previous prime is 23521530424229. The next prime is 23521530424277. The reversal of 23521530424253 is 35242403512532.

It is an interprime number because it is at equal distance from previous prime (23521530424229) and next prime (23521530424277).

It is not a de Polignac number, because 23521530424253 - 2¹⁶ = 23521530358717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23521530424253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23521530424213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7917040058 + ... + 7917043028.

It is an arithmetic number, because the mean of its divisors is an integer number (526251297000).

Almost surely, 2^{23521530424253} is an apocalyptic number.

It is an amenable number.

23521530424253 is a deficient number, since it is larger than the sum of its proper divisors (1738531831747).

23521530424253 is a wasteful number, since it uses less digits than its factorization.

23521530424253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690 (or 4671 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 23521530424253 its reverse (35242403512532), we get a palindrome (58763933936785).

The spelling of 23521530424253 in words is "twenty-three trillion, five hundred twenty-one billion, five hundred thirty million, four hundred twenty-four thousand, two hundred fifty-three".