61580057 has 8 divisors (see below), whose sum is σ = 76775232. Its totient is φ = 47984400.

The previous prime is 61580053. The next prime is 61580059. The reversal of 61580057 is 75008516.

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

It is a cyclic number.

It is not a de Polignac number, because 61580057 - 2² = 61580053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61580053) 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, 399794 + ... + 399947.

It is an arithmetic number, because the mean of its divisors is an integer number (9596904).

Almost surely, 2^61580057 is an apocalyptic number.

It is an amenable number.

61580057 is a deficient number, since it is larger than the sum of its proper divisors (15195175).

61580057 is a wasteful number, since it uses less digits than its factorization.

61580057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799759.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 61580057 is about 7847.2961585504. The cubic root of 61580057 is about 394.8935396478.

The spelling of 61580057 in words is "sixty-one million, five hundred eighty thousand, fifty-seven".