55727957 has 8 divisors (see below), whose sum is σ = 58566816. Its totient is φ = 52959312.

The previous prime is 55727941. The next prime is 55727983. The reversal of 55727957 is 75972755.

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 55727957 - 2⁴ = 55727941 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 (55727927) 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, 15923 + ... + 19104.

It is an arithmetic number, because the mean of its divisors is an integer number (7320852).

Almost surely, 2^55727957 is an apocalyptic number.

It is an amenable number.

55727957 is a deficient number, since it is larger than the sum of its proper divisors (2838859).

55727957 is a wasteful number, since it uses less digits than its factorization.

55727957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35107.

The product of its digits is 771750, while the sum is 47.

The square root of 55727957 is about 7465.1160071361. The cubic root of 55727957 is about 381.9657073828.

The spelling of 55727957 in words is "fifty-five million, seven hundred twenty-seven thousand, nine hundred fifty-seven".