52931649 has 4 divisors (see below), whose sum is σ = 70575536. Its totient is φ = 35287764.

The previous prime is 52931647. The next prime is 52931651. The reversal of 52931649 is 94613925.

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 an interprime number because it is at equal distance from previous prime (52931647) and next prime (52931651).

It is not a de Polignac number, because 52931649 - 2¹ = 52931647 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52931647) 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, 8821939 + ... + 8821944.

It is an arithmetic number, because the mean of its divisors is an integer number (17643884).

Almost surely, 2^52931649 is an apocalyptic number.

It is an amenable number.

52931649 is a deficient number, since it is larger than the sum of its proper divisors (17643887).

52931649 is a wasteful number, since it uses less digits than its factorization.

52931649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17643886.

The product of its digits is 58320, while the sum is 39.

The square root of 52931649 is about 7275.4140088383. The cubic root of 52931649 is about 375.4670305562.

The spelling of 52931649 in words is "fifty-two million, nine hundred thirty-one thousand, six hundred forty-nine".