252772477 has 2 divisors, whose sum is σ = 252772478. Its totient is φ = 252772476.

The previous prime is 252772463. The next prime is 252772483. The reversal of 252772477 is 774277252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175138756 + 77633721 = 13234^2 + 8811^2 .

It is a cyclic number.

It is not a de Polignac number, because 252772477 - 2²³ = 244383869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252772427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126386238 + 126386239.

It is an arithmetic number, because the mean of its divisors is an integer number (126386239).

Almost surely, 2^252772477 is an apocalyptic number.

It is an amenable number.

252772477 is a deficient number, since it is larger than the sum of its proper divisors (1).

252772477 is an equidigital number, since it uses as much as digits as its factorization.

252772477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384160, while the sum is 43.

The square root of 252772477 is about 15898.8199876595. The cubic root of 252772477 is about 632.2807038662.

The spelling of 252772477 in words is "two hundred fifty-two million, seven hundred seventy-two thousand, four hundred seventy-seven".