2500022251 has 8 divisors (see below), whose sum is σ = 2536247808. Its totient is φ = 2463825000.

The previous prime is 2500022221. The next prime is 2500022269. The reversal of 2500022251 is 1522200052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2500022251 - 2⁷ = 2500022123 is a prime.

It is a super-2 number, since 2×2500022251² = 12500222510990214002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225406 + ... + 236236.

It is an arithmetic number, because the mean of its divisors is an integer number (317030976).

Almost surely, 2^2500022251 is an apocalyptic number.

2500022251 is a deficient number, since it is larger than the sum of its proper divisors (36225557).

2500022251 is a wasteful number, since it uses less digits than its factorization.

2500022251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2500022251 is about 50000.2225095049. Note that the first 3 decimals coincide. The cubic root of 2500022251 is about 1357.2128348526.

The spelling of 2500022251 in words is "two billion, five hundred million, twenty-two thousand, two hundred fifty-one".