252621877 has 2 divisors, whose sum is σ = 252621878. Its totient is φ = 252621876.

The previous prime is 252621839. The next prime is 252621911. The reversal of 252621877 is 778126252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249829636 + 2792241 = 15806^2 + 1671^2 .

It is a cyclic number.

It is not a de Polignac number, because 252621877 - 2¹⁹ = 252097589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252621827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126310938 + 126310939.

It is an arithmetic number, because the mean of its divisors is an integer number (126310939).

Almost surely, 2^252621877 is an apocalyptic number.

It is an amenable number.

252621877 is a deficient number, since it is larger than the sum of its proper divisors (1).

252621877 is an equidigital number, since it uses as much as digits as its factorization.

252621877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 252621877 is about 15894.0830814489. The cubic root of 252621877 is about 632.1551095081.

The spelling of 252621877 in words is "two hundred fifty-two million, six hundred twenty-one thousand, eight hundred seventy-seven".