55293538 has 4 divisors (see below), whose sum is σ = 82940310. Its totient is φ = 27646768.

The previous prime is 55293527. The next prime is 55293547. The reversal of 55293538 is 83539255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83539255 = 5 ⋅16707851.

It can be written as a sum of positive squares in only one way, i.e., 52461049 + 2832489 = 7243^2 + 1683^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55293538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13823383 + ... + 13823386.

Almost surely, 2^55293538 is an apocalyptic number.

55293538 is a deficient number, since it is larger than the sum of its proper divisors (27646772).

55293538 is a wasteful number, since it uses less digits than its factorization.

55293538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27646771.

The product of its digits is 162000, while the sum is 40.

The square root of 55293538 is about 7435.9624797332. The cubic root of 55293538 is about 380.9705981908.

The spelling of 55293538 in words is "fifty-five million, two hundred ninety-three thousand, five hundred thirty-eight".