125504412115 has 4 divisors (see below), whose sum is σ = 150605294544. Its totient is φ = 100403529688.

The previous prime is 125504412101. The next prime is 125504412151. The reversal of 125504412115 is 511214405521.

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

It is a cyclic number.

It is not a de Polignac number, because 125504412115 - 2⁷ = 125504411987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12550441207 + ... + 12550441216.

It is an arithmetic number, because the mean of its divisors is an integer number (37651323636).

Almost surely, 2^125504412115 is an apocalyptic number.

125504412115 is a deficient number, since it is larger than the sum of its proper divisors (25100882429).

125504412115 is an equidigital number, since it uses as much as digits as its factorization.

125504412115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25100882428.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 125504412115 its reverse (511214405521), we get a palindrome (636718817636).

The spelling of 125504412115 in words is "one hundred twenty-five billion, five hundred four million, four hundred twelve thousand, one hundred fifteen".