5121523451 has 4 divisors (see below), whose sum is σ = 5587116504. Its totient is φ = 4655930400.

The previous prime is 5121523447. The next prime is 5121523523. The reversal of 5121523451 is 1543251215.

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

It is not a de Polignac number, because 5121523451 - 2² = 5121523447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121523951) 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, 232796510 + ... + 232796531.

It is an arithmetic number, because the mean of its divisors is an integer number (1396779126).

Almost surely, 2^5121523451 is an apocalyptic number.

5121523451 is a deficient number, since it is larger than the sum of its proper divisors (465593053).

5121523451 is a wasteful number, since it uses less digits than its factorization.

5121523451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465593052.

The product of its digits is 6000, while the sum is 29.

The square root of 5121523451 is about 71564.8199257149. The cubic root of 5121523451 is about 1723.7186817235.

Adding to 5121523451 its reverse (1543251215), we get a palindrome (6664774666).

The spelling of 5121523451 in words is "five billion, one hundred twenty-one million, five hundred twenty-three thousand, four hundred fifty-one".