125025780 has 48 divisors (see below), whose sum is σ = 381898944. Its totient is φ = 30309120.

The previous prime is 125025763. The next prime is 125025809. The reversal of 125025780 is 87520521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94057 + ... + 95376.

It is an arithmetic number, because the mean of its divisors is an integer number (7956228).

Almost surely, 2^125025780 is an apocalyptic number.

125025780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125025780 is an abundant number, since it is smaller than the sum of its proper divisors (256873164).

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

125025780 is a wasteful number, since it uses less digits than its factorization.

125025780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189456 (or 189454 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 125025780 is about 11181.4927447099. The cubic root of 125025780 is about 500.0343709706.

The spelling of 125025780 in words is "one hundred twenty-five million, twenty-five thousand, seven hundred eighty".