561270125 has 36 divisors (see below), whose sum is σ = 763173684. Its totient is φ = 411933600.

The previous prime is 561270121. The next prime is 561270137. The reversal of 561270125 is 521072165.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

561270125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 395452996 + 165817129 = 19886^2 + 12877^2 .

It is not a de Polignac number, because 561270125 - 2² = 561270121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561270121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3443294 + ... + 3443456.

It is an arithmetic number, because the mean of its divisors is an integer number (21199269).

Almost surely, 2^561270125 is an apocalyptic number.

It is an amenable number.

561270125 is a deficient number, since it is larger than the sum of its proper divisors (201903559).

561270125 is an equidigital number, since it uses as much as digits as its factorization.

561270125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 561270125 is about 23691.1402216103. The cubic root of 561270125 is about 824.8797498441.

The spelling of 561270125 in words is "five hundred sixty-one million, two hundred seventy thousand, one hundred twenty-five".