56501225 has 24 divisors (see below), whose sum is σ = 79762752. Its totient is φ = 39300800.

The previous prime is 56501219. The next prime is 56501227. The reversal of 56501225 is 52210565.

It is not a de Polignac number, because 56501225 - 2¹⁶ = 56435689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56501194 and 56501203.

It is not an unprimeable number, because it can be changed into a prime (56501227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1859 + ... + 10791.

It is an arithmetic number, because the mean of its divisors is an integer number (3323448).

Almost surely, 2^56501225 is an apocalyptic number.

56501225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56501225 is a deficient number, since it is larger than the sum of its proper divisors (23261527).

56501225 is a wasteful number, since it uses less digits than its factorization.

56501225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977 (or 8972 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 56501225 is about 7516.7296745327. The cubic root of 56501225 is about 383.7242871290.

The spelling of 56501225 in words is "fifty-six million, five hundred one thousand, two hundred twenty-five".