61536225 has 24 divisors (see below), whose sum is σ = 104111392. Its totient is φ = 32054400.

The previous prime is 61536187. The next prime is 61536239. The reversal of 61536225 is 52263516.

It is not a de Polignac number, because 61536225 - 2¹⁵ = 61503457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61536192 and 61536201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6316 + ... + 12765.

Almost surely, 2^61536225 is an apocalyptic number.

It is an amenable number.

61536225 is a deficient number, since it is larger than the sum of its proper divisors (42575167).

61536225 is a wasteful number, since it uses less digits than its factorization.

61536225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19137 (or 19132 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 61536225 is about 7844.5028523164. The cubic root of 61536225 is about 394.7998237985.

The spelling of 61536225 in words is "sixty-one million, five hundred thirty-six thousand, two hundred twenty-five".