55591274 has 4 divisors (see below), whose sum is σ = 83386914. Its totient is φ = 27795636.

The previous prime is 55591267. The next prime is 55591297. The reversal of 55591274 is 47219555.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42159049 + 13432225 = 6493^2 + 3665^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13897817 + ... + 13897820.

Almost surely, 2^55591274 is an apocalyptic number.

55591274 is a deficient number, since it is larger than the sum of its proper divisors (27795640).

55591274 is a wasteful number, since it uses less digits than its factorization.

55591274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27795639.

The product of its digits is 63000, while the sum is 38.

The square root of 55591274 is about 7455.9556060910. The cubic root of 55591274 is about 381.6531714896.

The spelling of 55591274 in words is "fifty-five million, five hundred ninety-one thousand, two hundred seventy-four".