125784055 has 4 divisors (see below), whose sum is σ = 150940872. Its totient is φ = 100627240.

The previous prime is 125784041. The next prime is 125784059. The reversal of 125784055 is 550487521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 125784055 - 2⁹ = 125783543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125784059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12578401 + ... + 12578410.

It is an arithmetic number, because the mean of its divisors is an integer number (37735218).

Almost surely, 2^125784055 is an apocalyptic number.

125784055 is a deficient number, since it is larger than the sum of its proper divisors (25156817).

125784055 is an equidigital number, since it uses as much as digits as its factorization.

125784055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25156816.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 125784055 is about 11215.3490806127. The cubic root of 125784055 is about 501.0432285014.

The spelling of 125784055 in words is "one hundred twenty-five million, seven hundred eighty-four thousand, fifty-five".