252611651 has 2 divisors, whose sum is σ = 252611652. Its totient is φ = 252611650.

The previous prime is 252611647. The next prime is 252611677. The reversal of 252611651 is 156116252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252611651 - 2² = 252611647 is a prime.

It is not a weakly prime, because it can be changed into another prime (252611351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126305825 + 126305826.

It is an arithmetic number, because the mean of its divisors is an integer number (126305826).

Almost surely, 2^252611651 is an apocalyptic number.

252611651 is a deficient number, since it is larger than the sum of its proper divisors (1).

252611651 is an equidigital number, since it uses as much as digits as its factorization.

252611651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 252611651 is about 15893.7613861540. The cubic root of 252611651 is about 632.1465796248.

The spelling of 252611651 in words is "two hundred fifty-two million, six hundred eleven thousand, six hundred fifty-one".