52290291 has 4 divisors (see below), whose sum is σ = 69720392. Its totient is φ = 34860192.

The previous prime is 52290269. The next prime is 52290307. The reversal of 52290291 is 19209225.

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

It is not a de Polignac number, because 52290291 - 2⁷ = 52290163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52290221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715046 + ... + 8715051.

It is an arithmetic number, because the mean of its divisors is an integer number (17430098).

Almost surely, 2^52290291 is an apocalyptic number.

52290291 is a deficient number, since it is larger than the sum of its proper divisors (17430101).

52290291 is a wasteful number, since it uses less digits than its factorization.

52290291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430100.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 52290291 is about 7231.2025970789. The cubic root of 52290291 is about 373.9443877199.

The spelling of 52290291 in words is "fifty-two million, two hundred ninety thousand, two hundred ninety-one".