125897856 has 96 divisors (see below), whose sum is σ = 389072880. Its totient is φ = 35965440.

The previous prime is 125897773. The next prime is 125897861. The reversal of 125897856 is 658798521.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 125897799 and 125897808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15471 + ... + 22161.

Almost surely, 2^125897856 is an apocalyptic number.

125897856 is a gapful number since it is divisible by the number (16) 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 125897856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194536440).

125897856 is an abundant number, since it is smaller than the sum of its proper divisors (263175024).

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

125897856 is an equidigital number, since it uses as much as digits as its factorization.

125897856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722 (or 6703 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The square root of 125897856 is about 11220.4213824615. The cubic root of 125897856 is about 501.1942864220.

The spelling of 125897856 in words is "one hundred twenty-five million, eight hundred ninety-seven thousand, eight hundred fifty-six".