2491025122 has 16 divisors (see below), whose sum is σ = 3938320440. Its totient is φ = 1179872512.

The previous prime is 2491025107. The next prime is 2491025171. The reversal of 2491025122 is 2215201942.

It can be written as a sum of positive squares in 4 ways, for example, as 2088581401 + 402443721 = 45701^2 + 20061^2 .

It is a super-2 number, since 2×2491025122² = 12410412316870229768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402103 + ... + 408250.

Almost surely, 2^2491025122 is an apocalyptic number.

2491025122 is a deficient number, since it is larger than the sum of its proper divisors (1447295318).

2491025122 is a wasteful number, since it uses less digits than its factorization.

2491025122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810437.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2491025122 is about 49910.1705266572. The cubic root of 2491025122 is about 1355.5827564634.

The spelling of 2491025122 in words is "two billion, four hundred ninety-one million, twenty-five thousand, one hundred twenty-two".