253292251 has 4 divisors (see below), whose sum is σ = 257585400. Its totient is φ = 248999104.

The previous prime is 253292243. The next prime is 253292257. The reversal of 253292251 is 152292352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253292251 - 2³ = 253292243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253292257) 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, 2146486 + ... + 2146603.

It is an arithmetic number, because the mean of its divisors is an integer number (64396350).

Almost surely, 2^253292251 is an apocalyptic number.

253292251 is a deficient number, since it is larger than the sum of its proper divisors (4293149).

253292251 is an equidigital number, since it uses as much as digits as its factorization.

253292251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293148.

The product of its digits is 10800, while the sum is 31.

The square root of 253292251 is about 15915.1579005676. The cubic root of 253292251 is about 632.7137917159.

The spelling of 253292251 in words is "two hundred fifty-three million, two hundred ninety-two thousand, two hundred fifty-one".