52774921 has 4 divisors (see below), whose sum is σ = 53043012. Its totient is φ = 52506832.

The previous prime is 52774907. The next prime is 52774961. The reversal of 52774921 is 12947725.

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 47886400 + 4888521 = 6920^2 + 2211^2 .

It is a cyclic number.

It is not a de Polignac number, because 52774921 - 2¹⁵ = 52742153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52774961) 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, 133750 + ... + 134143.

It is an arithmetic number, because the mean of its divisors is an integer number (13260753).

Almost surely, 2^52774921 is an apocalyptic number.

It is an amenable number.

52774921 is a deficient number, since it is larger than the sum of its proper divisors (268091).

52774921 is a wasteful number, since it uses less digits than its factorization.

52774921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268090.

The product of its digits is 35280, while the sum is 37.

The square root of 52774921 is about 7264.6349529760. The cubic root of 52774921 is about 375.0960844157.

The spelling of 52774921 in words is "fifty-two million, seven hundred seventy-four thousand, nine hundred twenty-one".