2251500425 has 24 divisors (see below), whose sum is σ = 2866233216. Its totient is φ = 1753496640.

The previous prime is 2251500421. The next prime is 2251500439. The reversal of 2251500425 is 5240051522.

It is not a de Polignac number, because 2251500425 - 2² = 2251500421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2251500394 and 2251500403.

It is not an unprimeable number, because it can be changed into a prime (2251500421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337472 + ... + 344078.

It is an arithmetic number, because the mean of its divisors is an integer number (119426384).

Almost surely, 2^2251500425 is an apocalyptic number.

2251500425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251500425 is a deficient number, since it is larger than the sum of its proper divisors (614732791).

2251500425 is a wasteful number, since it uses less digits than its factorization.

2251500425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6977 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2251500425 is about 47449.9781348738. The cubic root of 2251500425 is about 1310.6619083752.

Adding to 2251500425 its reverse (5240051522), we get a palindrome (7491551947).

The spelling of 2251500425 in words is "two billion, two hundred fifty-one million, five hundred thousand, four hundred twenty-five".