2625990280 has 32 divisors (see below), whose sum is σ = 5910177240. Its totient is φ = 1050094080.

The previous prime is 2625990239. The next prime is 2625990299. The reversal of 2625990280 is 820995262.

It can be written as a sum of positive squares in 4 ways, for example, as 525234724 + 2100755556 = 22918^2 + 45834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176740 + ... + 191020.

Almost surely, 2^2625990280 is an apocalyptic number.

2625990280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2625990280 is an abundant number, since it is smaller than the sum of its proper divisors (3284186960).

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

2625990280 is a wasteful number, since it uses less digits than its factorization.

2625990280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18889 (or 18885 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 2625990280 is about 51244.4170617639. The cubic root of 2625990280 is about 1379.6355335203.

The spelling of 2625990280 in words is "two billion, six hundred twenty-five million, nine hundred ninety thousand, two hundred eighty".