55292187 has 8 divisors (see below), whose sum is σ = 74097936. Its totient is φ = 36673952.

The previous prime is 55292141. The next prime is 55292201. The reversal of 55292187 is 78129255.

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 55292187 - 2¹⁵ = 55259419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55292137) 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, 46188 + ... + 47369.

It is an arithmetic number, because the mean of its divisors is an integer number (9262242).

Almost surely, 2^55292187 is an apocalyptic number.

55292187 is a deficient number, since it is larger than the sum of its proper divisors (18805749).

55292187 is a wasteful number, since it uses less digits than its factorization.

55292187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93757.

The product of its digits is 50400, while the sum is 39.

The square root of 55292187 is about 7435.8716368695. The cubic root of 55292187 is about 380.9674953842.

The spelling of 55292187 in words is "fifty-five million, two hundred ninety-two thousand, one hundred eighty-seven".