61700025 has 12 divisors (see below), whose sum is σ = 102010832. Its totient is φ = 32906640.

The previous prime is 61699997. The next prime is 61700071. The reversal of 61700025 is 52000716.

It is not a de Polignac number, because 61700025 - 2⁵ = 61699993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61699974 and 61700010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411259 + ... + 411408.

Almost surely, 2^61700025 is an apocalyptic number.

It is an amenable number.

61700025 is a deficient number, since it is larger than the sum of its proper divisors (40310807).

61700025 is a wasteful number, since it uses less digits than its factorization.

61700025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822680 (or 822675 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 61700025 is about 7854.9363460183. The cubic root of 61700025 is about 395.1498123181.

The spelling of 61700025 in words is "sixty-one million, seven hundred thousand, twenty-five".