2557634506 has 8 divisors (see below), whose sum is σ = 4384516320. Its totient is φ = 1096129068.

The previous prime is 2557634503. The next prime is 2557634537. The reversal of 2557634506 is 6054367552.

2557634506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2557634501) 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, 91344076 + ... + 91344103.

It is an arithmetic number, because the mean of its divisors is an integer number (548064540).

Almost surely, 2^2557634506 is an apocalyptic number.

2557634506 is a deficient number, since it is larger than the sum of its proper divisors (1826881814).

2557634506 is a wasteful number, since it uses less digits than its factorization.

2557634506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182688188.

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 2557634506 is about 50573.0610700994. The cubic root of 2557634506 is about 1367.5592798048.

The spelling of 2557634506 in words is "two billion, five hundred fifty-seven million, six hundred thirty-four thousand, five hundred six".