2551255236 has 72 divisors (see below), whose sum is σ = 6669062400. Its totient is φ = 821499840.

The previous prime is 2551255219. The next prime is 2551255241. The reversal of 2551255236 is 6325521552.

2551255236 is a `hidden beast` number, since 2 + 5 + 5 + 125 + 523 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2551255236.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 733710 + ... + 737178.

Almost surely, 2^2551255236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551255236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3334531200).

2551255236 is an abundant number, since it is smaller than the sum of its proper divisors (4117807164).

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

2551255236 is a wasteful number, since it uses less digits than its factorization.

2551255236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169 (or 4164 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 2551255236 is about 50509.9518510956. The cubic root of 2551255236 is about 1366.4213411988.

Adding to 2551255236 its reverse (6325521552), we get a palindrome (8876776788).

The spelling of 2551255236 in words is "two billion, five hundred fifty-one million, two hundred fifty-five thousand, two hundred thirty-six".