125004440000 has 280 divisors, whose sum is σ = 346065823488. Its totient is φ = 44392320000.

The previous prime is 125004439991. The next prime is 125004440009. The reversal of 125004440000 is 44400521.

It is an interprime number because it is at equal distance from previous prime (125004439991) and next prime (125004440009).

It is a super-2 number, since 2×125004440000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125004440009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18916697 + ... + 18923303.

Almost surely, 2^125004440000 is an apocalyptic number.

125004440000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125004440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173032911744).

125004440000 is an abundant number, since it is smaller than the sum of its proper divisors (221061383488).

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

125004440000 is an equidigital number, since it uses as much as digits as its factorization.

125004440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 125004440000 its reverse (44400521), we get a palindrome (125048840521).

The spelling of 125004440000 in words is "one hundred twenty-five billion, four million, four hundred forty thousand".