453528168025 has 15 divisors (see below), whose sum is σ = 563911471871. Its totient is φ = 361833917160.

The previous prime is 453528168017. The next prime is 453528168031. The reversal of 453528168025 is 520861825354.

The square root of 453528168025 is 673445.

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., 163270140489 + 290258027536 = 404067^2 + 538756^2 .

It is not a de Polignac number, because 453528168025 - 2³ = 453528168017 is a prime.

It is a super-2 number, since 2×453528168025² (a number of 24 digits) contains 22 as substring.

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 453528168025.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1235771392 + ... + 1235771758.

Almost surely, 2^453528168025 is an apocalyptic number.

453528168025 is the 673445-th square number.

453528168025 is the 336723-rd centered octagonal number.

It is an amenable number.

453528168025 is a deficient number, since it is larger than the sum of its proper divisors (110383303846).

453528168025 is an frugal number, since it uses more digits than its factorization.

453528168025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

Multiplying 453528168025 by its sum of digits (49), we get a square (22222880233225 = 4714115²).

The spelling of 453528168025 in words is "four hundred fifty-three billion, five hundred twenty-eight million, one hundred sixty-eight thousand, twenty-five".