253906413 has 4 divisors (see below), whose sum is σ = 338541888. Its totient is φ = 169270940.

The previous prime is 253906343. The next prime is 253906421. The reversal of 253906413 is 314609352.

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 a cyclic number.

It is not a de Polignac number, because 253906413 - 2¹⁰ = 253905389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253906313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42317733 + ... + 42317738.

It is an arithmetic number, because the mean of its divisors is an integer number (84635472).

Almost surely, 2^253906413 is an apocalyptic number.

It is an amenable number.

253906413 is a deficient number, since it is larger than the sum of its proper divisors (84635475).

253906413 is an equidigital number, since it uses as much as digits as its factorization.

253906413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84635474.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 253906413 is about 15934.4410946854. The cubic root of 253906413 is about 633.2247628912.

The spelling of 253906413 in words is "two hundred fifty-three million, nine hundred six thousand, four hundred thirteen".