2981952225 has 120 divisors (see below), whose sum is σ = 6348972608. Its totient is φ = 1355356800.

The previous prime is 2981952221. The next prime is 2981952241. The reversal of 2981952225 is 5222591892.

It is a happy number.

2981952225 is a `hidden beast` number, since 2 + 98 + 19 + 522 + 25 = 666.

It is not a de Polignac number, because 2981952225 - 2² = 2981952221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2981952221) 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 119 ways as a sum of consecutive naturals, for example, 2990427 + ... + 2991423.

Almost surely, 2^2981952225 is an apocalyptic number.

2981952225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2981952225 is an abundant number, since it is smaller than the sum of its proper divisors (3367020383).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2981952225 is a wasteful number, since it uses less digits than its factorization.

2981952225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1223 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 2981952225 is about 54607.2543257762. The cubic root of 2981952225 is about 1439.3515961010.

The spelling of 2981952225 in words is "two billion, nine hundred eighty-one million, nine hundred fifty-two thousand, two hundred twenty-five".