52311961 has 4 divisors (see below), whose sum is σ = 56335972. Its totient is φ = 48287952.

The previous prime is 52311899. The next prime is 52311977. The reversal of 52311961 is 16911325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30735936 + 21576025 = 5544^2 + 4645^2 .

It is a cyclic number.

It is not a de Polignac number, because 52311961 - 2¹¹ = 52309913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52311991) 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, 2011986 + ... + 2012011.

It is an arithmetic number, because the mean of its divisors is an integer number (14083993).

Almost surely, 2^52311961 is an apocalyptic number.

It is an amenable number.

52311961 is a deficient number, since it is larger than the sum of its proper divisors (4024011).

52311961 is a wasteful number, since it uses less digits than its factorization.

52311961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024010.

The product of its digits is 1620, while the sum is 28.

The square root of 52311961 is about 7232.7008095178. The cubic root of 52311961 is about 373.9960369241.

The spelling of 52311961 in words is "fifty-two million, three hundred eleven thousand, nine hundred sixty-one".