52972949 has 4 divisors (see below), whose sum is σ = 53841420. Its totient is φ = 52104480.

The previous prime is 52972939. The next prime is 52972951. The reversal of 52972949 is 94927925.

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 26450449 + 26522500 = 5143^2 + 5150^2 .

It is a cyclic number.

It is not a de Polignac number, because 52972949 - 2²⁰ = 51924373 is a prime.

It is a super-2 number, since 2×52972949² = 5612266651513202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52972939) 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, 434144 + ... + 434265.

It is an arithmetic number, because the mean of its divisors is an integer number (13460355).

Almost surely, 2^52972949 is an apocalyptic number.

It is an amenable number.

52972949 is a deficient number, since it is larger than the sum of its proper divisors (868471).

52972949 is an equidigital number, since it uses as much as digits as its factorization.

52972949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868470.

The product of its digits is 408240, while the sum is 47.

The square root of 52972949 is about 7278.2517818498. The cubic root of 52972949 is about 375.5646580773.

The spelling of 52972949 in words is "fifty-two million, nine hundred seventy-two thousand, nine hundred forty-nine".