2257536278 has 16 divisors (see below), whose sum is σ = 3509745360. Its totient is φ = 1088181216.

The previous prime is 2257536277. The next prime is 2257536283. The reversal of 2257536278 is 8726357522.

It is a super-3 number, since 3×2257536278³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257536277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131876 + ... + 148007.

It is an arithmetic number, because the mean of its divisors is an integer number (219359085).

Almost surely, 2^2257536278 is an apocalyptic number.

2257536278 is a deficient number, since it is larger than the sum of its proper divisors (1252209082).

2257536278 is a wasteful number, since it uses less digits than its factorization.

2257536278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280031.

The product of its digits is 1411200, while the sum is 47.

The square root of 2257536278 is about 47513.5378392306. The cubic root of 2257536278 is about 1311.8320767603.

The spelling of 2257536278 in words is "two billion, two hundred fifty-seven million, five hundred thirty-six thousand, two hundred seventy-eight".