125503878 has 8 divisors (see below), whose sum is σ = 251007768. Its totient is φ = 41834624.

The previous prime is 125503867. The next prime is 125503897. The reversal of 125503878 is 878305521.

It is a sphenic number, since it is the product of 3 distinct primes.

125503878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10458651 + ... + 10458662.

It is an arithmetic number, because the mean of its divisors is an integer number (31375971).

Almost surely, 2^125503878 is an apocalyptic number.

125503878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125503878 is a wasteful number, since it uses less digits than its factorization.

125503878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20917318.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 125503878 is about 11202.8513334776. The cubic root of 125503878 is about 500.6709366187.

The spelling of 125503878 in words is "one hundred twenty-five million, five hundred three thousand, eight hundred seventy-eight".