2251009995 has 16 divisors (see below), whose sum is σ = 3878663712. Its totient is φ = 1108189440.

The previous prime is 2251009987. The next prime is 2251009997. The reversal of 2251009995 is 5999001522.

It is a happy number.

It is not a de Polignac number, because 2251009995 - 2³ = 2251009987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2251009997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5771626 + ... + 5772015.

It is an arithmetic number, because the mean of its divisors is an integer number (242416482).

Almost surely, 2^2251009995 is an apocalyptic number.

2251009995 is a deficient number, since it is larger than the sum of its proper divisors (1627653717).

2251009995 is a wasteful number, since it uses less digits than its factorization.

2251009995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11543662.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 2251009995 is about 47444.8099901349. The cubic root of 2251009995 is about 1310.5667370856.

The spelling of 2251009995 in words is "two billion, two hundred fifty-one million, nine thousand, nine hundred ninety-five".