2525222091925 has 12 divisors (see below), whose sum is σ = 3372142732420. Its totient is φ = 1864779390720.

The previous prime is 2525222091919. The next prime is 2525222091961. The reversal of 2525222091925 is 5291902225252.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 102570310756 + 2422651781169 = 320266^2 + 1556487^2 .

It is not a de Polignac number, because 2525222091925 - 2⁵ = 2525222091893 is a prime.

It is a super-2 number, since 2×2525222091925² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3884956740 + ... + 3884957389.

Almost surely, 2^{2525222091925} is an apocalyptic number.

2525222091925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2525222091925 is a deficient number, since it is larger than the sum of its proper divisors (846920640495).

2525222091925 is a wasteful number, since it uses less digits than its factorization.

2525222091925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769914152 (or 7769914147 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 2525222091925 in words is "two trillion, five hundred twenty-five billion, two hundred twenty-two million, ninety-one thousand, nine hundred twenty-five".