2571254578 has 16 divisors (see below), whose sum is σ = 3937921344. Its totient is φ = 1258844400.

The previous prime is 2571254557. The next prime is 2571254639. The reversal of 2571254578 is 8754521752.

It is a happy number.

It is a super-2 number, since 2×2571254578² = 13222700209771916168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35073 + ... + 79828.

It is an arithmetic number, because the mean of its divisors is an integer number (246120084).

Almost surely, 2^2571254578 is an apocalyptic number.

2571254578 is a deficient number, since it is larger than the sum of its proper divisors (1366666766).

2571254578 is a wasteful number, since it uses less digits than its factorization.

2571254578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115137.

The product of its digits is 784000, while the sum is 46.

The square root of 2571254578 is about 50707.5396563470. The cubic root of 2571254578 is about 1369.9825202451.

The spelling of 2571254578 in words is "two billion, five hundred seventy-one million, two hundred fifty-four thousand, five hundred seventy-eight".