125502551013 has 16 divisors (see below), whose sum is σ = 191490696320. Its totient is φ = 71622475776.

The previous prime is 125502550951. The next prime is 125502551087. The reversal of 125502551013 is 310155205521.

It is not a de Polignac number, because 125502551013 - 2¹⁰ = 125502549989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125502551813) 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, 3869620 + ... + 3901917.

It is an arithmetic number, because the mean of its divisors is an integer number (11968168520).

Almost surely, 2^125502551013 is an apocalyptic number.

It is an amenable number.

125502551013 is a deficient number, since it is larger than the sum of its proper divisors (65988145307).

125502551013 is an equidigital number, since it uses as much as digits as its factorization.

125502551013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7772316.

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 125502551013 its reverse (310155205521), we get a palindrome (435657756534).

The spelling of 125502551013 in words is "one hundred twenty-five billion, five hundred two million, five hundred fifty-one thousand, thirteen".