125635420 has 24 divisors (see below), whose sum is σ = 265006224. Its totient is φ = 50030976.

The previous prime is 125635351. The next prime is 125635421. The reversal of 125635420 is 24536521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125635421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9297 + ... + 18376.

It is an arithmetic number, because the mean of its divisors is an integer number (11041926).

Almost surely, 2^125635420 is an apocalyptic number.

125635420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125635420 is an abundant number, since it is smaller than the sum of its proper divisors (139370804).

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

125635420 is a wasteful number, since it uses less digits than its factorization.

125635420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27909 (or 27907 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 125635420 is about 11208.7207120170. The cubic root of 125635420 is about 500.8457951212.

The spelling of 125635420 in words is "one hundred twenty-five million, six hundred thirty-five thousand, four hundred twenty".