252051461 has 2 divisors, whose sum is σ = 252051462. Its totient is φ = 252051460.

The previous prime is 252051433. The next prime is 252051479. The reversal of 252051461 is 164150252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216648961 + 35402500 = 14719^2 + 5950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252051461 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252051461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252051361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126025730 + 126025731.

It is an arithmetic number, because the mean of its divisors is an integer number (126025731).

Almost surely, 2^252051461 is an apocalyptic number.

It is an amenable number.

252051461 is a deficient number, since it is larger than the sum of its proper divisors (1).

252051461 is an equidigital number, since it uses as much as digits as its factorization.

252051461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 252051461 is about 15876.1286527919. The cubic root of 252051461 is about 631.6789523659.

The spelling of 252051461 in words is "two hundred fifty-two million, fifty-one thousand, four hundred sixty-one".