125350244040 has 128 divisors (see below), whose sum is σ = 431617455360. Its totient is φ = 28528472064.

The previous prime is 125350244009. The next prime is 125350244093. The reversal of 125350244040 is 40442053521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 125350243989 and 125350244007.

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, 124509 + ... + 515948.

It is an arithmetic number, because the mean of its divisors is an integer number (3372011370).

Almost surely, 2^125350244040 is an apocalyptic number.

125350244040 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 125350244040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215808727680).

125350244040 is an abundant number, since it is smaller than the sum of its proper divisors (306267211320).

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

125350244040 is a wasteful number, since it uses less digits than its factorization.

125350244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640711 (or 640707 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 125350244040 its reverse (40442053521), we get a palindrome (165792297561).

The spelling of 125350244040 in words is "one hundred twenty-five billion, three hundred fifty million, two hundred forty-four thousand, forty".