2251555325 has 12 divisors (see below), whose sum is σ = 2793481920. Its totient is φ = 1800242160.

The previous prime is 2251555321. The next prime is 2251555333. The reversal of 2251555325 is 5235551522.

It is not a de Polignac number, because 2251555325 - 2² = 2251555321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251555321) 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, 22556 + ... + 70794.

It is an arithmetic number, because the mean of its divisors is an integer number (232790160).

Almost surely, 2^2251555325 is an apocalyptic number.

2251555325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251555325 is a deficient number, since it is larger than the sum of its proper divisors (541926595).

2251555325 is a wasteful number, since it uses less digits than its factorization.

2251555325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50116 (or 50111 counting only the distinct ones).

The product of its digits is 75000, while the sum is 35.

The square root of 2251555325 is about 47450.5566353020. The cubic root of 2251555325 is about 1310.6725612348.

The spelling of 2251555325 in words is "two billion, two hundred fifty-one million, five hundred fifty-five thousand, three hundred twenty-five".