2551250500 has 24 divisors (see below), whose sum is σ = 5571932184. Its totient is φ = 1020500000.

The previous prime is 2551250489. The next prime is 2551250521. The reversal of 2551250500 is 50521552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129823236 + 2421427264 = 11394^2 + 49208^2 .

It is a super-2 number, since 2×2551250500² = 13017758227500500000, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550751 + ... + 2551750.

It is an arithmetic number, because the mean of its divisors is an integer number (232163841).

Almost surely, 2^2551250500 is an apocalyptic number.

2551250500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551250500 is an abundant number, since it is smaller than the sum of its proper divisors (3020681684).

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

2551250500 is a wasteful number, since it uses less digits than its factorization.

2551250500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102520 (or 5102508 counting only the distinct ones).

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

The square root of 2551250500 is about 50509.9049692236. The cubic root of 2551250500 is about 1366.4204956836.

The spelling of 2551250500 in words is "two billion, five hundred fifty-one million, two hundred fifty thousand, five hundred".