2551099 has 2 divisors, whose sum is σ = 2551100. Its totient is φ = 2551098.

The previous prime is 2551097. The next prime is 2551103. The reversal of 2551099 is 9901552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551099 - 2¹ = 2551097 is a prime.

It is a super-2 number, since 2×2551099² = 13016212215602, which contains 22 as substring.

Together with 2551097, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2551099.

It is not a weakly prime, because it can be changed into another prime (2551097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275549 + 1275550.

It is an arithmetic number, because the mean of its divisors is an integer number (1275550).

2^2551099 is an apocalyptic number.

2551099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551099 is an equidigital number, since it uses as much as digits as its factorization.

2551099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 2551099 is about 1597.2160154469. The cubic root of 2551099 is about 136.6393447928.

The spelling of 2551099 in words is "two million, five hundred fifty-one thousand, ninety-nine".