25552221452 has 24 divisors (see below), whose sum is σ = 44829832320. Its totient is φ = 12743728640.

The previous prime is 25552221451. The next prime is 25552221469. The reversal of 25552221452 is 25412225552.

It is a super-2 number, since 2×25552221452² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25552221451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6189413 + ... + 6193539.

It is an arithmetic number, because the mean of its divisors is an integer number (1867909680).

Almost surely, 2^25552221452 is an apocalyptic number.

It is an amenable number.

25552221452 is a deficient number, since it is larger than the sum of its proper divisors (19277610868).

25552221452 is a wasteful number, since it uses less digits than its factorization.

25552221452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681 (or 7679 counting only the distinct ones).

The product of its digits is 80000, while the sum is 35.

The spelling of 25552221452 in words is "twenty-five billion, five hundred fifty-two million, two hundred twenty-one thousand, four hundred fifty-two".