2251212533 has 16 divisors (see below), whose sum is σ = 2330104320. Its totient is φ = 2173776000.

The previous prime is 2251212527. The next prime is 2251212559. The reversal of 2251212533 is 3352121522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2251212533 - 2⁸ = 2251212277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251212563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1703513 + ... + 1704833.

It is an arithmetic number, because the mean of its divisors is an integer number (145631520).

Almost surely, 2^2251212533 is an apocalyptic number.

It is an amenable number.

2251212533 is a deficient number, since it is larger than the sum of its proper divisors (78891787).

2251212533 is a wasteful number, since it uses less digits than its factorization.

2251212533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828.

The product of its digits is 3600, while the sum is 26.

The square root of 2251212533 is about 47446.9444010887. The cubic root of 2251212533 is about 1310.6060426426.

The spelling of 2251212533 in words is "two billion, two hundred fifty-one million, two hundred twelve thousand, five hundred thirty-three".