2257199905 has 32 divisors (see below), whose sum is σ = 3025330560. Its totient is φ = 1606671360.

The previous prime is 2257199821. The next prime is 2257199909. The reversal of 2257199905 is 5099917522.

It is a de Polignac number, because none of the positive numbers 2^k-2257199905 is a prime.

It is a super-2 number, since 2×2257199905² = 10189902822264018050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2257199909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 946815 + ... + 949195.

It is an arithmetic number, because the mean of its divisors is an integer number (94541580).

Almost surely, 2^2257199905 is an apocalyptic number.

It is an amenable number.

2257199905 is a deficient number, since it is larger than the sum of its proper divisors (768130655).

2257199905 is a wasteful number, since it uses less digits than its factorization.

2257199905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009.

The product of its (nonzero) digits is 510300, while the sum is 49.

The square root of 2257199905 is about 47509.9979478004. The cubic root of 2257199905 is about 1311.7669191792.

The spelling of 2257199905 in words is "two billion, two hundred fifty-seven million, one hundred ninety-nine thousand, nine hundred five".