52192391 has 2 divisors, whose sum is σ = 52192392. Its totient is φ = 52192390.

The previous prime is 52192381. The next prime is 52192409. The reversal of 52192391 is 19329125.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52192391 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52192321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26096195 + 26096196.

It is an arithmetic number, because the mean of its divisors is an integer number (26096196).

Almost surely, 2^52192391 is an apocalyptic number.

52192391 is a deficient number, since it is larger than the sum of its proper divisors (1).

52192391 is an equidigital number, since it uses as much as digits as its factorization.

52192391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 52192391 is about 7224.4301505378. The cubic root of 52192391 is about 373.7108706514.

The spelling of 52192391 in words is "fifty-two million, one hundred ninety-two thousand, three hundred ninety-one".