2625811091 has 2 divisors, whose sum is σ = 2625811092. Its totient is φ = 2625811090.

The previous prime is 2625811037. The next prime is 2625811099. The reversal of 2625811091 is 1901185262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2625811091 - 2²⁶ = 2558702227 is a prime.

It is a super-2 number, since 2×2625811091² = 13789767771237220562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2625811099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312905545 + 1312905546.

It is an arithmetic number, because the mean of its divisors is an integer number (1312905546).

Almost surely, 2^2625811091 is an apocalyptic number.

2625811091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625811091 is an equidigital number, since it uses as much as digits as its factorization.

2625811091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 2625811091 is about 51242.6686561112. The cubic root of 2625811091 is about 1379.6041521989.

The spelling of 2625811091 in words is "two billion, six hundred twenty-five million, eight hundred eleven thousand, ninety-one".