2251511523 has 12 divisors (see below), whose sum is σ = 3285712248. Its totient is φ = 1485532800.

The previous prime is 2251511513. The next prime is 2251511539. The reversal of 2251511523 is 3251151522.

2251511523 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251511523 - 2⁹ = 2251511011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2251511513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288653 + ... + 1290398.

It is an arithmetic number, because the mean of its divisors is an integer number (273809354).

Almost surely, 2^2251511523 is an apocalyptic number.

2251511523 is a deficient number, since it is larger than the sum of its proper divisors (1034200725).

2251511523 is a wasteful number, since it uses less digits than its factorization.

2251511523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579154 (or 2579151 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 2251511523 is about 47450.0950789353. The cubic root of 2251511523 is about 1310.6640618579.

The spelling of 2251511523 in words is "two billion, two hundred fifty-one million, five hundred eleven thousand, five hundred twenty-three".