2557064758 has 8 divisors (see below), whose sum is σ = 4061220552. Its totient is φ = 1203324576.

The previous prime is 2557064687. The next prime is 2557064777. The reversal of 2557064758 is 8574607552.

It is a happy number.

2557064758 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 a congruent 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, 37603860 + ... + 37603927.

It is an arithmetic number, because the mean of its divisors is an integer number (507652569).

Almost surely, 2^2557064758 is an apocalyptic number.

2557064758 is a deficient number, since it is larger than the sum of its proper divisors (1504155794).

2557064758 is a wasteful number, since it uses less digits than its factorization.

2557064758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75207806.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The square root of 2557064758 is about 50567.4278365036. The cubic root of 2557064758 is about 1367.4577247642.

The spelling of 2557064758 in words is "two billion, five hundred fifty-seven million, sixty-four thousand, seven hundred fifty-eight".