55976091 has 8 divisors (see below), whose sum is σ = 74758224. Its totient is φ = 37255680.

The previous prime is 55976077. The next prime is 55976093. The reversal of 55976091 is 19067955.

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

It is not a de Polignac number, because 55976091 - 2¹⁵ = 55943323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55976093) 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, 13270 + ... + 16971.

It is an arithmetic number, because the mean of its divisors is an integer number (9344778).

Almost surely, 2^55976091 is an apocalyptic number.

55976091 is a deficient number, since it is larger than the sum of its proper divisors (18782133).

55976091 is a wasteful number, since it uses less digits than its factorization.

55976091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30861.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 55976091 is about 7481.7171157429. The cubic root of 55976091 is about 382.5317808614.

The spelling of 55976091 in words is "fifty-five million, nine hundred seventy-six thousand, ninety-one".