561333025 has 24 divisors (see below), whose sum is σ = 760665600. Its totient is φ = 407524800.

The previous prime is 561333007. The next prime is 561333119. The reversal of 561333025 is 520333165.

It is not a de Polignac number, because 561333025 - 2²⁵ = 527778593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561332984 and 561333002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193536 + ... + 196414.

It is an arithmetic number, because the mean of its divisors is an integer number (31694400).

Almost surely, 2^561333025 is an apocalyptic number.

561333025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561333025 is a deficient number, since it is larger than the sum of its proper divisors (199332575).

561333025 is a wasteful number, since it uses less digits than its factorization.

561333025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3604 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 561333025 is about 23692.4676848994. The cubic root of 561333025 is about 824.9105626951.

The spelling of 561333025 in words is "five hundred sixty-one million, three hundred thirty-three thousand, twenty-five".