2557268890 has 16 divisors (see below), whose sum is σ = 5021546400. Its totient is φ = 929915920.

The previous prime is 2557268837. The next prime is 2557268891. The reversal of 2557268890 is 988627552.

2557268890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2557268891) 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, 11623840 + ... + 11624059.

It is an arithmetic number, because the mean of its divisors is an integer number (313846650).

Almost surely, 2^2557268890 is an apocalyptic number.

2557268890 is a deficient number, since it is larger than the sum of its proper divisors (2464277510).

2557268890 is a wasteful number, since it uses less digits than its factorization.

2557268890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23247917.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 2557268890 is about 50569.4462101376. The cubic root of 2557268890 is about 1367.4941121170.

The spelling of 2557268890 in words is "two billion, five hundred fifty-seven million, two hundred sixty-eight thousand, eight hundred ninety".