2553656442 has 8 divisors (see below), whose sum is σ = 5107312896. Its totient is φ = 851218812.

The previous prime is 2553656429. The next prime is 2553656447. The reversal of 2553656442 is 2446563552.

2553656442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2553656442 is an admirable number.

It is a super-2 number, since 2×2553656442² = 13042322447536198728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2553656394 and 2553656403.

It is not an unprimeable number, because it can be changed into a prime (2553656447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212804698 + ... + 212804709.

It is an arithmetic number, because the mean of its divisors is an integer number (638414112).

Almost surely, 2^2553656442 is an apocalyptic number.

2553656442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2553656442 is a wasteful number, since it uses less digits than its factorization.

2553656442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425609412.

The product of its digits is 864000, while the sum is 42.

The square root of 2553656442 is about 50533.7158934508. The cubic root of 2553656442 is about 1366.8498923752.

The spelling of 2553656442 in words is "two billion, five hundred fifty-three million, six hundred fifty-six thousand, four hundred forty-two".