52791961 has 4 divisors (see below), whose sum is σ = 53686800. Its totient is φ = 51897124.

The previous prime is 52791941. The next prime is 52791971. The reversal of 52791961 is 16919725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52791961 - 2⁷ = 52791833 is a prime.

It is a super-2 number, since 2×52791961² = 5573982292451042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52791911) 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, 447331 + ... + 447448.

It is an arithmetic number, because the mean of its divisors is an integer number (13421700).

Almost surely, 2^52791961 is an apocalyptic number.

It is an amenable number.

52791961 is a deficient number, since it is larger than the sum of its proper divisors (894839).

52791961 is an equidigital number, since it uses as much as digits as its factorization.

52791961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894838.

The product of its digits is 34020, while the sum is 40.

The square root of 52791961 is about 7265.8076632953. The cubic root of 52791961 is about 375.1364504922.

The spelling of 52791961 in words is "fifty-two million, seven hundred ninety-one thousand, nine hundred sixty-one".