22448454025 has 6 divisors (see below), whose sum is σ = 27836083022. Its totient is φ = 17958763200.

The previous prime is 22448454013. The next prime is 22448454059. The reversal of 22448454025 is 52045484422.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6635894521 + 15812559504 = 81461^2 + 125748^2 .

It is not a de Polignac number, because 22448454025 - 2⁹ = 22448453513 is a prime.

It is a super-2 number, since 2×22448454025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448969056 + ... + 448969105.

Almost surely, 2^22448454025 is an apocalyptic number.

22448454025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22448454025 is a deficient number, since it is larger than the sum of its proper divisors (5387628997).

22448454025 is an equidigital number, since it uses as much as digits as its factorization.

22448454025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897938171 (or 897938166 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 40.

The spelling of 22448454025 in words is "twenty-two billion, four hundred forty-eight million, four hundred fifty-four thousand, twenty-five".