52191274 has 4 divisors (see below), whose sum is σ = 78286914. Its totient is φ = 26095636.

The previous prime is 52191247. The next prime is 52191281. The reversal of 52191274 is 47219125.

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., 51480625 + 710649 = 7175^2 + 843^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13047817 + ... + 13047820.

Almost surely, 2^52191274 is an apocalyptic number.

52191274 is a deficient number, since it is larger than the sum of its proper divisors (26095640).

52191274 is a wasteful number, since it uses less digits than its factorization.

52191274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26095639.

The product of its digits is 5040, while the sum is 31.

The square root of 52191274 is about 7224.3528429888. The cubic root of 52191274 is about 373.7082046305.

The spelling of 52191274 in words is "fifty-two million, one hundred ninety-one thousand, two hundred seventy-four".