61995975 has 12 divisors (see below), whose sum is σ = 102500136. Its totient is φ = 33064480.

The previous prime is 61995959. The next prime is 61996013. The reversal of 61995975 is 57959916.

It is a happy number.

It is not a de Polignac number, because 61995975 - 2⁴ = 61995959 is a prime.

It is a congruent number.

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, 413232 + ... + 413381.

It is an arithmetic number, because the mean of its divisors is an integer number (8541678).

Almost surely, 2^61995975 is an apocalyptic number.

61995975 is a deficient number, since it is larger than the sum of its proper divisors (40504161).

61995975 is a wasteful number, since it uses less digits than its factorization.

61995975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826626 (or 826621 counting only the distinct ones).

The product of its digits is 765450, while the sum is 51.

The square root of 61995975 is about 7873.7522821079. The cubic root of 61995975 is about 395.7805959904.

The spelling of 61995975 in words is "sixty-one million, nine hundred ninety-five thousand, nine hundred seventy-five".