61057807 has 8 divisors (see below), whose sum is σ = 64168016. Its totient is φ = 58024512.

The previous prime is 61057793. The next prime is 61057813. The reversal of 61057807 is 70875016.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61057807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61057307) 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, 17598 + ... + 20779.

It is an arithmetic number, because the mean of its divisors is an integer number (8021002).

Almost surely, 2^61057807 is an apocalyptic number.

61057807 is a deficient number, since it is larger than the sum of its proper divisors (3110209).

61057807 is a wasteful number, since it uses less digits than its factorization.

61057807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38457.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 61057807 is about 7813.9495135303. The cubic root of 61057807 is about 393.7740271892.

The spelling of 61057807 in words is "sixty-one million, fifty-seven thousand, eight hundred seven".