2521045437 has 8 divisors (see below), whose sum is σ = 3407440704. Its totient is φ = 1657673568.

The previous prime is 2521045411. The next prime is 2521045451. The reversal of 2521045437 is 7345401252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2521045437 - 2⁷ = 2521045309 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2521045398 and 2521045407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521045537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5755593 + ... + 5756030.

It is an arithmetic number, because the mean of its divisors is an integer number (425930088).

Almost surely, 2^2521045437 is an apocalyptic number.

It is an amenable number.

2521045437 is a deficient number, since it is larger than the sum of its proper divisors (886395267).

2521045437 is a wasteful number, since it uses less digits than its factorization.

2521045437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11511699.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 2521045437 is about 50210.0133140791. The cubic root of 2521045437 is about 1361.0065783816.

Adding to 2521045437 its reverse (7345401252), we get a palindrome (9866446689).

The spelling of 2521045437 in words is "two billion, five hundred twenty-one million, forty-five thousand, four hundred thirty-seven".