2251433915 has 4 divisors (see below), whose sum is σ = 2701720704. Its totient is φ = 1801147128.

The previous prime is 2251433911. The next prime is 2251433917. The reversal of 2251433915 is 5193341522.

2251433915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2251433915 - 2² = 2251433911 is a prime.

It is a super-2 number, since 2×2251433915² = 10137909347224454450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251433911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225143387 + ... + 225143396.

It is an arithmetic number, because the mean of its divisors is an integer number (675430176).

Almost surely, 2^2251433915 is an apocalyptic number.

2251433915 is a deficient number, since it is larger than the sum of its proper divisors (450286789).

2251433915 is an equidigital number, since it uses as much as digits as its factorization.

2251433915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450286788.

The product of its digits is 32400, while the sum is 35.

The square root of 2251433915 is about 47449.2772863824. The cubic root of 2251433915 is about 1310.6490024657.

The spelling of 2251433915 in words is "two billion, two hundred fifty-one million, four hundred thirty-three thousand, nine hundred fifteen".