125520228 has 36 divisors (see below), whose sum is σ = 317657340. Its totient is φ = 41791296.

The previous prime is 125520211. The next prime is 125520247. The reversal of 125520228 is 822025521.

It can be written as a sum of positive squares in 2 ways, for example, as 67272804 + 58247424 = 8202^2 + 7632^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42826 + ... + 45662.

It is an arithmetic number, because the mean of its divisors is an integer number (8823815).

Almost surely, 2^125520228 is an apocalyptic number.

125520228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

125520228 is an abundant number, since it is smaller than the sum of its proper divisors (192137112).

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

125520228 is a wasteful number, since it uses less digits than its factorization.

125520228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 125520228 is about 11203.5810346514. The cubic root of 125520228 is about 500.6926772866.

Adding to 125520228 its reverse (822025521), we get a palindrome (947545749).

The spelling of 125520228 in words is "one hundred twenty-five million, five hundred twenty thousand, two hundred twenty-eight".