2257536551 has 4 divisors (see below), whose sum is σ = 2258012352. Its totient is φ = 2257060752.

The previous prime is 2257536511. The next prime is 2257536557. The reversal of 2257536551 is 1556357522.

It is a happy number.

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 2257536551 - 2³⁰ = 1183794727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2257536499 and 2257536508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257536557) 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, 230711 + ... + 240296.

It is an arithmetic number, because the mean of its divisors is an integer number (564503088).

Almost surely, 2^2257536551 is an apocalyptic number.

2257536551 is a deficient number, since it is larger than the sum of its proper divisors (475801).

2257536551 is an equidigital number, since it uses as much as digits as its factorization.

2257536551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475800.

The product of its digits is 315000, while the sum is 41.

The square root of 2257536551 is about 47513.5407120960. The cubic root of 2257536551 is about 1311.8321296395.

The spelling of 2257536551 in words is "two billion, two hundred fifty-seven million, five hundred thirty-six thousand, five hundred fifty-one".