125775552 has 168 divisors, whose sum is σ = 401330160. Its totient is φ = 34621440.

The previous prime is 125775547. The next prime is 125775563. The reversal of 125775552 is 255577521.

It is a tau number, because it is divible by the number of its divisors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 125775552.

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, 272602 + ... + 273062.

It is an arithmetic number, because the mean of its divisors is an integer number (2388870).

Almost surely, 2^125775552 is an apocalyptic number.

125775552 is a gapful number since it is divisible by the number (12) 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 125775552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200665080).

125775552 is an abundant number, since it is smaller than the sum of its proper divisors (275554608).

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

125775552 is a wasteful number, since it uses less digits than its factorization.

125775552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 502 counting only the distinct ones).

The product of its digits is 122500, while the sum is 39.

The square root of 125775552 is about 11214.9699955015. The cubic root of 125775552 is about 501.0319380757.

The spelling of 125775552 in words is "one hundred twenty-five million, seven hundred seventy-five thousand, five hundred fifty-two".