6253557990 has 32 divisors (see below), whose sum is σ = 15163273440. Its totient is φ = 1650422784.

The previous prime is 6253557979. The next prime is 6253558009. The reversal of 6253557990 is 997553526.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071585 + ... + 1077404.

It is an arithmetic number, because the mean of its divisors is an integer number (473852295).

Almost surely, 2^6253557990 is an apocalyptic number.

6253557990 is an abundant number, since it is smaller than the sum of its proper divisors (8909715450).

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

6253557990 is a wasteful number, since it uses less digits than its factorization.

6253557990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149096.

The product of its (nonzero) digits is 2551500, while the sum is 51.

The square root of 6253557990 is about 79079.4410071290. The cubic root of 6253557990 is about 1842.3652229388.

The spelling of 6253557990 in words is "six billion, two hundred fifty-three million, five hundred fifty-seven thousand, nine hundred ninety".