561453025 has 27 divisors (see below), whose sum is σ = 811065369. Its totient is φ = 384427680.

The previous prime is 561453017. The next prime is 561453037. The reversal of 561453025 is 520354165.

The square root of 561453025 is 23695.

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

It can be written as a sum of positive squares in 4 ways, for example, as 161772961 + 399680064 = 12719^2 + 19992^2 .

It is not a de Polignac number, because 561453025 - 2³ = 561453017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 828987 + ... + 829663.

Almost surely, 2^561453025 is an apocalyptic number.

561453025 is the 23695-th square number.

561453025 is the 11848-th centered octagonal number.

It is an amenable number.

561453025 is a deficient number, since it is larger than the sum of its proper divisors (249612344).

561453025 is an frugal number, since it uses more digits than its factorization.

561453025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The cubic root of 561453025 is about 824.9693407645.

The spelling of 561453025 in words is "five hundred sixty-one million, four hundred fifty-three thousand, twenty-five".