61590225 has 24 divisors (see below), whose sum is σ = 102984480. Its totient is φ = 32475520.

The previous prime is 61590209. The next prime is 61590227. The reversal of 61590225 is 52209516.

It is a happy number.

It is not a de Polignac number, because 61590225 - 2⁴ = 61590209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61590192 and 61590201.

It is not an unprimeable number, because it can be changed into a prime (61590227) 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, 2062 + ... + 11288.

It is an arithmetic number, because the mean of its divisors is an integer number (4291020).

Almost surely, 2^61590225 is an apocalyptic number.

It is an amenable number.

61590225 is a deficient number, since it is larger than the sum of its proper divisors (41394255).

61590225 is a wasteful number, since it uses less digits than its factorization.

61590225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329 (or 9324 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 61590225 is about 7847.9439982711. The cubic root of 61590225 is about 394.9152731804.

The spelling of 61590225 in words is "sixty-one million, five hundred ninety thousand, two hundred twenty-five".