61085975 has 6 divisors (see below), whose sum is σ = 75746640. Its totient is φ = 48868760.

The previous prime is 61085963. The next prime is 61085987. The reversal of 61085975 is 57958016.

It is an interprime number because it is at equal distance from previous prime (61085963) and next prime (61085987).

It is not a de Polignac number, because 61085975 - 2¹⁰ = 61084951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1221695 + ... + 1221744.

It is an arithmetic number, because the mean of its divisors is an integer number (12624440).

Almost surely, 2^61085975 is an apocalyptic number.

61085975 is a deficient number, since it is larger than the sum of its proper divisors (14660665).

61085975 is a wasteful number, since it uses less digits than its factorization.

61085975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443449 (or 2443444 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 61085975 is about 7815.7517232829. The cubic root of 61085975 is about 393.8345715711.

The spelling of 61085975 in words is "sixty-one million, eighty-five thousand, nine hundred seventy-five".