2521051551233 has 4 divisors (see below), whose sum is σ = 2521283681748. Its totient is φ = 2520819420720.

The previous prime is 2521051551181. The next prime is 2521051551311. The reversal of 2521051551233 is 3321551501252.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1665707728129 + 855343823104 = 1290623^2 + 924848^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521051551233 - 2¹⁸ = 2521051289089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2521051551193 and 2521051551202.

It is not an unprimeable number, because it can be changed into a prime (2521051551433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116048966 + ... + 116070687.

It is an arithmetic number, because the mean of its divisors is an integer number (630320920437).

Almost surely, 2^{2521051551233} is an apocalyptic number.

It is an amenable number.

2521051551233 is a deficient number, since it is larger than the sum of its proper divisors (232130515).

2521051551233 is a wasteful number, since it uses less digits than its factorization.

2521051551233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232130514.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 2521051551233 in words is "two trillion, five hundred twenty-one billion, fifty-one million, five hundred fifty-one thousand, two hundred thirty-three".