252761601 has 4 divisors (see below), whose sum is σ = 337015472. Its totient is φ = 168507732.

The previous prime is 252761599. The next prime is 252761603. The reversal of 252761601 is 106167252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (252761599) and next prime (252761603).

It is not a de Polignac number, because 252761601 - 2¹ = 252761599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252761603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42126931 + ... + 42126936.

It is an arithmetic number, because the mean of its divisors is an integer number (84253868).

Almost surely, 2^252761601 is an apocalyptic number.

It is an amenable number.

252761601 is a deficient number, since it is larger than the sum of its proper divisors (84253871).

252761601 is an equidigital number, since it uses as much as digits as its factorization.

252761601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84253870.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 252761601 is about 15898.4779460173. The cubic root of 252761601 is about 632.2716353901.

The spelling of 252761601 in words is "two hundred fifty-two million, seven hundred sixty-one thousand, six hundred one".