2522401891 has 2 divisors, whose sum is σ = 2522401892. Its totient is φ = 2522401890.

The previous prime is 2522401883. The next prime is 2522401907. The reversal of 2522401891 is 1981042252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2522401891 - 2³ = 2522401883 is a prime.

It is a super-2 number, since 2×2522401891² = 12725022599440751762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2522402891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261200945 + 1261200946.

It is an arithmetic number, because the mean of its divisors is an integer number (1261200946).

Almost surely, 2^2522401891 is an apocalyptic number.

2522401891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2522401891 is an equidigital number, since it uses as much as digits as its factorization.

2522401891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2522401891 is about 50223.5193012198. The cubic root of 2522401891 is about 1361.2506321357.

The spelling of 2522401891 in words is "two billion, five hundred twenty-two million, four hundred one thousand, eight hundred ninety-one".