125503403032 has 64 divisors (see below), whose sum is σ = 277710704640. Its totient is φ = 52033449600.

The previous prime is 125503403029. The next prime is 125503403041. The reversal of 125503403032 is 230304305521.

It is a super-2 number, since 2×125503403032² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 5510853 + ... + 5533579.

It is an arithmetic number, because the mean of its divisors is an integer number (4339229760).

Almost surely, 2^125503403032 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 125503403032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138855352320).

125503403032 is an abundant number, since it is smaller than the sum of its proper divisors (152207301608).

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

125503403032 is a wasteful number, since it uses less digits than its factorization.

125503403032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25952 (or 25948 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 125503403032 its reverse (230304305521), we get a palindrome (355807708553).

The spelling of 125503403032 in words is "one hundred twenty-five billion, five hundred three million, four hundred three thousand, thirty-two".