6255416172889 has 9 divisors (see below), whose sum is σ = 6773651536959. Its totient is φ = 5774200300440.

The previous prime is 6255416172877. The next prime is 6255416172923. The reversal of 6255416172889 is 9882716145526.

The square root of 6255416172889 is 2501083.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 925357422025 + 5330058750864 = 961955^2 + 2308692^2 .

It is not a de Polignac number, because 6255416172889 - 2⁵ = 6255416172857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6255416172889.

It is not an unprimeable number, because it can be changed into a prime (6255416172389) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32417884 + ... + 32610274.

It is an arithmetic number, because the mean of its divisors is an integer number (752627948551).

Almost surely, 2^{6255416172889} is an apocalyptic number.

6255416172889 is the 2501083-rd square number.

6255416172889 is the 1250542-nd centered octagonal number.

It is an amenable number.

6255416172889 is a deficient number, since it is larger than the sum of its proper divisors (518235364070).

6255416172889 is an frugal number, since it uses more digits than its factorization.

6255416172889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384808 (or 192404 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 64.

Multiplying 6255416172889 by its sum of digits (64), we get a square (400346635064896 = 20008664²).

The spelling of 6255416172889 in words is "six trillion, two hundred fifty-five billion, four hundred sixteen million, one hundred seventy-two thousand, eight hundred eighty-nine".