5125521345 has 16 divisors (see below), whose sum is σ = 9372382080. Its totient is φ = 2343095424.

The previous prime is 5125521293. The next prime is 5125521347. The reversal of 5125521345 is 5431255215.

It is not a de Polignac number, because 5125521345 - 2⁷ = 5125521217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5125521347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24407140 + ... + 24407349.

It is an arithmetic number, because the mean of its divisors is an integer number (585773880).

Almost surely, 2^5125521345 is an apocalyptic number.

It is an amenable number.

5125521345 is a deficient number, since it is larger than the sum of its proper divisors (4246860735).

5125521345 is a wasteful number, since it uses less digits than its factorization.

5125521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48814504.

The product of its digits is 30000, while the sum is 33.

The square root of 5125521345 is about 71592.7464552101. The cubic root of 5125521345 is about 1724.1670803495.

The spelling of 5125521345 in words is "five billion, one hundred twenty-five million, five hundred twenty-one thousand, three hundred forty-five".