253204551 has 6 divisors (see below), whose sum is σ = 365739920. Its totient is φ = 168803028.

The previous prime is 253204547. The next prime is 253204571. The reversal of 253204551 is 155402352.

It is a happy number.

It is not a de Polignac number, because 253204551 - 2² = 253204547 is a prime.

It is a super-2 number, since 2×253204551² = 128225089294223202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253204571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14066911 + ... + 14066928.

Almost surely, 2^253204551 is an apocalyptic number.

253204551 is a deficient number, since it is larger than the sum of its proper divisors (112535369).

253204551 is a wasteful number, since it uses less digits than its factorization.

253204551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28133845 (or 28133842 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 253204551 is about 15912.4024270378. The cubic root of 253204551 is about 632.6407596028.

The spelling of 253204551 in words is "two hundred fifty-three million, two hundred four thousand, five hundred fifty-one".