2551117404 has 48 divisors (see below), whose sum is σ = 6776098560. Its totient is φ = 739453440.

The previous prime is 2551117391. The next prime is 2551117409. The reversal of 2551117404 is 4047111552.

2551117404 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551117409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417109 + ... + 423180.

It is an arithmetic number, because the mean of its divisors is an integer number (141168720).

Almost surely, 2^2551117404 is an apocalyptic number.

It is an amenable number.

2551117404 is an abundant number, since it is smaller than the sum of its proper divisors (4224981156).

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

2551117404 is a wasteful number, since it uses less digits than its factorization.

2551117404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840330 (or 840328 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 2551117404 is about 50508.5874282780. The cubic root of 2551117404 is about 1366.3967337068.

Adding to 2551117404 its reverse (4047111552), we get a palindrome (6598228956).

The spelling of 2551117404 in words is "two billion, five hundred fifty-one million, one hundred seventeen thousand, four hundred four".