61057994 has 16 divisors (see below), whose sum is σ = 93045120. Its totient is φ = 30045600.

The previous prime is 61057993. The next prime is 61058017. The reversal of 61057994 is 49975016.

It is a Curzon number.

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, 94637 + ... + 95279.

It is an arithmetic number, because the mean of its divisors is an integer number (5815320).

Almost surely, 2^61057994 is an apocalyptic number.

61057994 is a deficient number, since it is larger than the sum of its proper divisors (31987126).

61057994 is a wasteful number, since it uses less digits than its factorization.

61057994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 61057994 is about 7813.9614793010. The cubic root of 61057994 is about 393.7744291890.

The spelling of 61057994 in words is "sixty-one million, fifty-seven thousand, nine hundred ninety-four".