125597523240 has 768 divisors, whose sum is σ = 535030272000. Its totient is φ = 26009786880.

The previous prime is 125597523223. The next prime is 125597523283. The reversal of 125597523240 is 42325795521.

125597523240 is a `hidden beast` number, since 1 + 2 + 5 + 597 + 52 + 3 + 2 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 23123325 + ... + 23128755.

It is an arithmetic number, because the mean of its divisors is an integer number (696654000).

Almost surely, 2^125597523240 is an apocalyptic number.

125597523240 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 125597523240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267515136000).

125597523240 is an abundant number, since it is smaller than the sum of its proper divisors (409432748760).

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

125597523240 is a wasteful number, since it uses less digits than its factorization.

125597523240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507 (or 5490 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 125597523240 in words is "one hundred twenty-five billion, five hundred ninety-seven million, five hundred twenty-three thousand, two hundred forty".