252220651 has 2 divisors, whose sum is σ = 252220652. Its totient is φ = 252220650.

The previous prime is 252220607. The next prime is 252220663. The reversal of 252220651 is 156022252.

It is a happy number.

252220651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252220651 is a prime.

It is not a weakly prime, because it can be changed into another prime (252220751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126110325 + 126110326.

It is an arithmetic number, because the mean of its divisors is an integer number (126110326).

Almost surely, 2^252220651 is an apocalyptic number.

252220651 is a deficient number, since it is larger than the sum of its proper divisors (1).

252220651 is an equidigital number, since it uses as much as digits as its factorization.

252220651 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 25.

The square root of 252220651 is about 15881.4561989762. The cubic root of 252220651 is about 631.8202593003.

The spelling of 252220651 in words is "two hundred fifty-two million, two hundred twenty thousand, six hundred fifty-one".