252402277 has 2 divisors, whose sum is σ = 252402278. Its totient is φ = 252402276.

The previous prime is 252402263. The next prime is 252402307. The reversal of 252402277 is 772204252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248346081 + 4056196 = 15759^2 + 2014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252402277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252402257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126201138 + 126201139.

It is an arithmetic number, because the mean of its divisors is an integer number (126201139).

Almost surely, 2^252402277 is an apocalyptic number.

It is an amenable number.

252402277 is a deficient number, since it is larger than the sum of its proper divisors (1).

252402277 is an equidigital number, since it uses as much as digits as its factorization.

252402277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 252402277 is about 15887.1733483336. The cubic root of 252402277 is about 631.9718824282.

The spelling of 252402277 in words is "two hundred fifty-two million, four hundred two thousand, two hundred seventy-seven".