125500554105 has 16 divisors (see below), whose sum is σ = 200835700224. Its totient is φ = 66922024320.

The previous prime is 125500554071. The next prime is 125500554139. The reversal of 125500554105 is 501455005521.

It is an interprime number because it is at equal distance from previous prime (125500554071) and next prime (125500554139).

It is not a de Polignac number, because 125500554105 - 2¹⁵ = 125500521337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635524 + ... + 809253.

It is an arithmetic number, because the mean of its divisors is an integer number (12552231264).

Almost surely, 2^125500554105 is an apocalyptic number.

125500554105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125500554105 is a deficient number, since it is larger than the sum of its proper divisors (75335146119).

125500554105 is a wasteful number, since it uses less digits than its factorization.

125500554105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450576.

The product of its (nonzero) digits is 25000, while the sum is 33.

Adding to 125500554105 its reverse (501455005521), we get a palindrome (626955559626).

The spelling of 125500554105 in words is "one hundred twenty-five billion, five hundred million, five hundred fifty-four thousand, one hundred five".