125502020 has 24 divisors (see below), whose sum is σ = 301205184. Its totient is φ = 43029216.

The previous prime is 125501969. The next prime is 125502023. The reversal of 125502020 is 20205521.

It is a self number, because there is not a number n which added to its sum of digits gives 125502020.

It is not an unprimeable number, because it can be changed into a prime (125502023) 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, 448082 + ... + 448361.

It is an arithmetic number, because the mean of its divisors is an integer number (12550216).

Almost surely, 2^125502020 is an apocalyptic number.

125502020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125502020 is an abundant number, since it is smaller than the sum of its proper divisors (175703164).

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

125502020 is a wasteful number, since it uses less digits than its factorization.

125502020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896459 (or 896457 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 125502020 is about 11202.7684078535. The cubic root of 125502020 is about 500.6684659084.

Adding to 125502020 its reverse (20205521), we get a palindrome (145707541).

The spelling of 125502020 in words is "one hundred twenty-five million, five hundred two thousand, twenty".