125525443212 has 72 divisors (see below), whose sum is σ = 343884837296. Its totient is φ = 38377183104.

The previous prime is 125525443189. The next prime is 125525443223. The reversal of 125525443212 is 212344525521.

125525443212 is a `hidden beast` number, since 1 + 2 + 552 + 54 + 43 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780718 + ... + 927669.

Almost surely, 2^125525443212 is an apocalyptic number.

125525443212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125525443212 is an abundant number, since it is smaller than the sum of its proper divisors (218359394084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125525443212 is a wasteful number, since it uses less digits than its factorization.

125525443212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708567 (or 1708562 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 125525443212 its reverse (212344525521), we get a palindrome (337869968733).

It can be divided in two parts, 1255254 and 43212, that added together give a triangular number (1298466 = T₁₆₁₁).

The spelling of 125525443212 in words is "one hundred twenty-five billion, five hundred twenty-five million, four hundred forty-three thousand, two hundred twelve".