2251261725 has 12 divisors (see below), whose sum is σ = 3722086176. Its totient is φ = 1200672880.

The previous prime is 2251261723. The next prime is 2251261729. The reversal of 2251261725 is 5271621522.

2251261725 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251261725 - 2¹ = 2251261723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251261723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15008337 + ... + 15008486.

It is an arithmetic number, because the mean of its divisors is an integer number (310173848).

Almost surely, 2^2251261725 is an apocalyptic number.

2251261725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251261725 is a deficient number, since it is larger than the sum of its proper divisors (1470824451).

2251261725 is a wasteful number, since it uses less digits than its factorization.

2251261725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30016836 (or 30016831 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 2251261725 is about 47447.4627878035. The cubic root of 2251261725 is about 1310.6155887371.

The spelling of 2251261725 in words is "two billion, two hundred fifty-one million, two hundred sixty-one thousand, seven hundred twenty-five".