2557012746 has 8 divisors (see below), whose sum is σ = 5114025504. Its totient is φ = 852337580.

The previous prime is 2557012729. The next prime is 2557012753. The reversal of 2557012746 is 6472107552.

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

2557012746 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213084390 + ... + 213084401.

It is an arithmetic number, because the mean of its divisors is an integer number (639253188).

Almost surely, 2^2557012746 is an apocalyptic number.

2557012746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2557012746 is a wasteful number, since it uses less digits than its factorization.

2557012746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426168796.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 2557012746 is about 50566.9135502653. The cubic root of 2557012746 is about 1367.4484531057.

The spelling of 2557012746 in words is "two billion, five hundred fifty-seven million, twelve thousand, seven hundred forty-six".