55277087 has 8 divisors (see below), whose sum is σ = 56158704. Its totient is φ = 54400768.

The previous prime is 55277071. The next prime is 55277093. The reversal of 55277087 is 78077255.

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 55277087 - 2⁴ = 55277071 is a prime.

It is a super-3 number, since 3×55277087³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277987) 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, 23183 + ... + 25455.

It is an arithmetic number, because the mean of its divisors is an integer number (7019838).

Almost surely, 2^55277087 is an apocalyptic number.

55277087 is a deficient number, since it is larger than the sum of its proper divisors (881617).

55277087 is a wasteful number, since it uses less digits than its factorization.

55277087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649.

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 55277087 is about 7434.8562191881. The cubic root of 55277087 is about 380.9328121662.

The spelling of 55277087 in words is "fifty-five million, two hundred seventy-seven thousand, eighty-seven".