2555421290 has 16 divisors (see below), whose sum is σ = 4600647720. Its totient is φ = 1021970880.

The previous prime is 2555421289. The next prime is 2555421293. The reversal of 2555421290 is 921245552.

It can be written as a sum of positive squares in 4 ways, for example, as 926410969 + 1629010321 = 30437^2 + 40361^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2555421290.

It is not an unprimeable number, because it can be changed into a prime (2555421293) 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, 36920 + ... + 80460.

Almost surely, 2^2555421290 is an apocalyptic number.

2555421290 is a deficient number, since it is larger than the sum of its proper divisors (2045226430).

2555421290 is a wasteful number, since it uses less digits than its factorization.

2555421290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49417.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2555421290 is about 50551.1749616169. The cubic root of 2555421290 is about 1367.1646993788.

The spelling of 2555421290 in words is "two billion, five hundred fifty-five million, four hundred twenty-one thousand, two hundred ninety".