2251911413 has 2 divisors, whose sum is σ = 2251911414. Its totient is φ = 2251911412.

The previous prime is 2251911379. The next prime is 2251911433. The reversal of 2251911413 is 3141191522.

2251911413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1676247364 + 575664049 = 40942^2 + 23993^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251911413 - 2⁶ = 2251911349 is a prime.

It is a super-2 number, since 2×2251911413² = 10142210023999313138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251911433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125955706 + 1125955707.

It is an arithmetic number, because the mean of its divisors is an integer number (1125955707).

Almost surely, 2^2251911413 is an apocalyptic number.

It is an amenable number.

2251911413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251911413 is an equidigital number, since it uses as much as digits as its factorization.

2251911413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 2251911413 is about 47454.3086874100. The cubic root of 2251911413 is about 1310.7416527592.

The spelling of 2251911413 in words is "two billion, two hundred fifty-one million, nine hundred eleven thousand, four hundred thirteen".