125251223040 has 240 divisors, whose sum is σ = 439013182608. Its totient is φ = 32997408768.

The previous prime is 125251222997. The next prime is 125251223059. The reversal of 125251223040 is 40322152521.

125251223040 is a `hidden beast` number, since 12 + 525 + 122 + 3 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a junction number, because it is equal to n+sod(n) for n = 125251222995 and 125251223013.

It is a congruent number.

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, 1879572 + ... + 1945068.

Almost surely, 2^125251223040 is an apocalyptic number.

125251223040 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 125251223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219506591304).

125251223040 is an abundant number, since it is smaller than the sum of its proper divisors (313761959568).

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

125251223040 is an equidigital number, since it uses as much as digits as its factorization.

125251223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65609 (or 65590 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 125251223040 its reverse (40322152521), we get a palindrome (165573375561).

The spelling of 125251223040 in words is "one hundred twenty-five billion, two hundred fifty-one million, two hundred twenty-three thousand, forty".