52312091 has 6 divisors (see below), whose sum is σ = 56645820. Its totient is φ = 48287928.

The previous prime is 52312087. The next prime is 52312103. The reversal of 52312091 is 19021325.

52312091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52312091 - 2² = 52312087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52312021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154601 + ... + 154938.

It is an arithmetic number, because the mean of its divisors is an integer number (9440970).

Almost surely, 2^52312091 is an apocalyptic number.

52312091 is a deficient number, since it is larger than the sum of its proper divisors (4333729).

52312091 is a wasteful number, since it uses less digits than its factorization.

52312091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309565 (or 309552 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 52312091 is about 7232.7097964732. The cubic root of 52312091 is about 373.9963467286.

The spelling of 52312091 in words is "fifty-two million, three hundred twelve thousand, ninety-one".