61057995 has 8 divisors (see below), whose sum is σ = 97692816. Its totient is φ = 32564256.

The previous prime is 61057993. The next prime is 61058017. The reversal of 61057995 is 59975016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61057995 - 2¹ = 61057993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61057991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2035252 + ... + 2035281.

It is an arithmetic number, because the mean of its divisors is an integer number (12211602).

Almost surely, 2^61057995 is an apocalyptic number.

61057995 is a deficient number, since it is larger than the sum of its proper divisors (36634821).

61057995 is a wasteful number, since it uses less digits than its factorization.

61057995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070541.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 61057995 is about 7813.9615432890. The cubic root of 61057995 is about 393.7744313387.

The spelling of 61057995 in words is "sixty-one million, fifty-seven thousand, nine hundred ninety-five".