61430625 has 60 divisors (see below), whose sum is σ = 113226256. Its totient is φ = 32076000.

The previous prime is 61430563. The next prime is 61430627. The reversal of 61430625 is 52603416.

61430625 is a `hidden beast` number, since 6 + 1 + 4 + 30 + 625 = 666.

It is not a de Polignac number, because 61430625 - 2⁹ = 61430113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61430627) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 376794 + ... + 376956.

Almost surely, 2^61430625 is an apocalyptic number.

It is an amenable number.

61430625 is a deficient number, since it is larger than the sum of its proper divisors (51795631).

61430625 is a wasteful number, since it uses less digits than its factorization.

61430625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 61430625 is about 7837.7691341350. The cubic root of 61430625 is about 394.5738607867.

The spelling of 61430625 in words is "sixty-one million, four hundred thirty thousand, six hundred twenty-five".