125331543444 has 96 divisors (see below), whose sum is σ = 319102350336. Its totient is φ = 38125762560.

The previous prime is 125331543431. The next prime is 125331543457. The reversal of 125331543444 is 444345133521.

It is an interprime number because it is at equal distance from previous prime (125331543431) and next prime (125331543457).

It is a super-2 number, since 2×125331543444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2183229 + ... + 2239899.

It is an arithmetic number, because the mean of its divisors is an integer number (3323982816).

Almost surely, 2^125331543444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125331543444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159551175168).

125331543444 is an abundant number, since it is smaller than the sum of its proper divisors (193770806892).

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

125331543444 is a wasteful number, since it uses less digits than its factorization.

125331543444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57025 (or 57023 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

Adding to 125331543444 its reverse (444345133521), we get a palindrome (569676676965).

The spelling of 125331543444 in words is "one hundred twenty-five billion, three hundred thirty-one million, five hundred forty-three thousand, four hundred forty-four".