2555251000 has 32 divisors (see below), whose sum is σ = 5979289680. Its totient is φ = 1022100000.

The previous prime is 2555250989. The next prime is 2555251003. The reversal of 2555251000 is 1525552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555251003) 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, 1276626 + ... + 1278625.

Almost surely, 2^2555251000 is an apocalyptic number.

2555251000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555251000 is an abundant number, since it is smaller than the sum of its proper divisors (3424038680).

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

2555251000 is a wasteful number, since it uses less digits than its factorization.

2555251000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555272 (or 2555258 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 2555251000 is about 50549.4906007964. The cubic root of 2555251000 is about 1367.1343300030.

Adding to 2555251000 its reverse (1525552), we get a palindrome (2556776552).

The spelling of 2555251000 in words is "two billion, five hundred fifty-five million, two hundred fifty-one thousand".