55757015 has 8 divisors (see below), whose sum is σ = 67755840. Its totient is φ = 44040672.

The previous prime is 55757011. The next prime is 55757017. The reversal of 55757015 is 51075755.

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 55757015 - 2² = 55757011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55757011) 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, 70184 + ... + 70973.

It is an arithmetic number, because the mean of its divisors is an integer number (8469480).

Almost surely, 2^55757015 is an apocalyptic number.

55757015 is a deficient number, since it is larger than the sum of its proper divisors (11998825).

55757015 is a wasteful number, since it uses less digits than its factorization.

55757015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141241.

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 55757015 is about 7467.0620059030. The cubic root of 55757015 is about 382.0320847844.

The spelling of 55757015 in words is "fifty-five million, seven hundred fifty-seven thousand, fifteen".