253523651 has 2 divisors, whose sum is σ = 253523652. Its totient is φ = 253523650.

The previous prime is 253523639. The next prime is 253523653. The reversal of 253523651 is 156325352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253523651 - 2⁶ = 253523587 is a prime.

Together with 253523653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253523653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126761825 + 126761826.

It is an arithmetic number, because the mean of its divisors is an integer number (126761826).

Almost surely, 2^253523651 is an apocalyptic number.

253523651 is a deficient number, since it is larger than the sum of its proper divisors (1).

253523651 is an equidigital number, since it uses as much as digits as its factorization.

253523651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 32.

The square root of 253523651 is about 15922.4260400229. The cubic root of 253523651 is about 632.9064090163.

The spelling of 253523651 in words is "two hundred fifty-three million, five hundred twenty-three thousand, six hundred fifty-one".