2553617658 has 16 divisors (see below), whose sum is σ = 5138570016. Its totient is φ = 845983440.

The previous prime is 2553617657. The next prime is 2553617663. The reversal of 2553617658 is 8567163552.

2553617658 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2553617657) 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, 1304553 + ... + 1306508.

It is an arithmetic number, because the mean of its divisors is an integer number (321160626).

Almost surely, 2^2553617658 is an apocalyptic number.

2553617658 is an abundant number, since it is smaller than the sum of its proper divisors (2584952358).

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

2553617658 is a wasteful number, since it uses less digits than its factorization.

2553617658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611229.

The product of its digits is 1512000, while the sum is 48.

The square root of 2553617658 is about 50533.3321481970. The cubic root of 2553617658 is about 1366.8429726015.

The spelling of 2553617658 in words is "two billion, five hundred fifty-three million, six hundred seventeen thousand, six hundred fifty-eight".