2257756356 has 48 divisors (see below), whose sum is σ = 5307906240. Its totient is φ = 746916480.

The previous prime is 2257756283. The next prime is 2257756373. The reversal of 2257756356 is 6536577522.

It is a happy number.

It is a super-3 number, since 3×2257756356³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020710 + ... + 2021826.

It is an arithmetic number, because the mean of its divisors is an integer number (110581380).

Almost surely, 2^2257756356 is an apocalyptic number.

It is an amenable number.

2257756356 is an abundant number, since it is smaller than the sum of its proper divisors (3050149884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2257756356 is a wasteful number, since it uses less digits than its factorization.

2257756356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 2242 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 48.

The square root of 2257756356 is about 47515.8537332541. The cubic root of 2257756356 is about 1311.8747037606.

The spelling of 2257756356 in words is "two billion, two hundred fifty-seven million, seven hundred fifty-six thousand, three hundred fifty-six".