2251152331 has 4 divisors (see below), whose sum is σ = 2254284000. Its totient is φ = 2248020664.

The previous prime is 2251152313. The next prime is 2251152367. The reversal of 2251152331 is 1332511522.

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 2251152331 - 2²³ = 2242763723 is a prime.

It is a super-2 number, since 2×2251152331² = 10135373634733467122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2251152296 and 2251152305.

It is not an unprimeable number, because it can be changed into a prime (2251152731) 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, 1564756 + ... + 1566193.

It is an arithmetic number, because the mean of its divisors is an integer number (563571000).

Almost surely, 2^2251152331 is an apocalyptic number.

2251152331 is a deficient number, since it is larger than the sum of its proper divisors (3131669).

2251152331 is an equidigital number, since it uses as much as digits as its factorization.

2251152331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131668.

The product of its digits is 1800, while the sum is 25.

The square root of 2251152331 is about 47446.3099829692. The cubic root of 2251152331 is about 1310.5943597817.

Adding to 2251152331 its reverse (1332511522), we get a palindrome (3583663853).

The spelling of 2251152331 in words is "two billion, two hundred fifty-one million, one hundred fifty-two thousand, three hundred thirty-one".