252775429 has 2 divisors, whose sum is σ = 252775430. Its totient is φ = 252775428.

The previous prime is 252775423. The next prime is 252775477. The reversal of 252775429 is 924577252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174187204 + 78588225 = 13198^2 + 8865^2 .

It is a cyclic number.

It is not a de Polignac number, because 252775429 - 2⁷ = 252775301 is a prime.

It is a super-2 number, since 2×252775429² = 127790835012268082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252775423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126387714 + 126387715.

It is an arithmetic number, because the mean of its divisors is an integer number (126387715).

Almost surely, 2^252775429 is an apocalyptic number.

It is an amenable number.

252775429 is a deficient number, since it is larger than the sum of its proper divisors (1).

252775429 is an equidigital number, since it uses as much as digits as its factorization.

252775429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

The square root of 252775429 is about 15898.9128244670. The cubic root of 252775429 is about 632.2831652172.

The spelling of 252775429 in words is "two hundred fifty-two million, seven hundred seventy-five thousand, four hundred twenty-nine".