24946178998225 has 27 divisors (see below), whose sum is σ = 31002627397777. Its totient is φ = 19912291340480.

The previous prime is 24946178998199. The next prime is 24946178998313. The reversal of 24946178998225 is 52289987164942.

The square root of 24946178998225 is 4994615.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 11747228420929 + 13198950577296 = 3427423^2 + 3633036^2 .

It is not a de Polignac number, because 24946178998225 - 2²¹ = 24946176901073 is a prime.

It is a super-2 number, since 2×24946178998225² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15408386466 + ... + 15408388084.

Almost surely, 2^{24946178998225} is an apocalyptic number.

24946178998225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

24946178998225 is the 4994615-th square number.

24946178998225 is the 2497308-th centered octagonal number.

It is an amenable number.

24946178998225 is a deficient number, since it is larger than the sum of its proper divisors (6056448399552).

24946178998225 is an frugal number, since it uses more digits than its factorization.

24946178998225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482 (or 2241 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 76.

The spelling of 24946178998225 in words is "twenty-four trillion, nine hundred forty-six billion, one hundred seventy-eight million, nine hundred ninety-eight thousand, two hundred twenty-five".