23920853901025 has 9 divisors (see below), whose sum is σ = 29661889160851. Its totient is φ = 19136663557240.

The previous prime is 23920853900969. The next prime is 23920853901029. The reversal of 23920853901025 is 52010935802932.

The square root of 23920853901025 is 4890895.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8611507404369 + 15309346496656 = 2934537^2 + 3912716^2 .

It is not a de Polignac number, because 23920853901025 - 2⁷ = 23920853900897 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 23920853901025.

It is not an unprimeable number, because it can be changed into a prime (23920853901029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23965386 + ... + 24943564.

Almost surely, 2^{23920853901025} is an apocalyptic number.

23920853901025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23920853901025 is the 4890895-th square number.

23920853901025 is the 2445448-th centered octagonal number.

It is an amenable number.

23920853901025 is a deficient number, since it is larger than the sum of its proper divisors (5741035259826).

23920853901025 is an frugal number, since it uses more digits than its factorization.

23920853901025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956368 (or 978184 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 23920853901025 in words is "twenty-three trillion, nine hundred twenty billion, eight hundred fifty-three million, nine hundred one thousand, twenty-five".