25221225076 has 6 divisors (see below), whose sum is σ = 44137143890. Its totient is φ = 12610612536.

The previous prime is 25221225059. The next prime is 25221225077. The reversal of 25221225076 is 67052212252.

It can be written as a sum of positive squares in only one way, i.e., 24972216676 + 249008400 = 158026^2 + 15780^2 .

It is a super-2 number, since 2×25221225076² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25221225077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3152653131 + ... + 3152653138.

Almost surely, 2^25221225076 is an apocalyptic number.

It is an amenable number.

25221225076 is a deficient number, since it is larger than the sum of its proper divisors (18915918814).

25221225076 is a wasteful number, since it uses less digits than its factorization.

25221225076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305306273 (or 6305306271 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 25221225076 in words is "twenty-five billion, two hundred twenty-one million, two hundred twenty-five thousand, seventy-six".