29890125 has 36 divisors (see below), whose sum is σ = 54214524. Its totient is φ = 15843600.

The previous prime is 29890111. The next prime is 29890141. The reversal of 29890125 is 52109892.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 28933641 = 978^2 + 5379^2 .

It is not a de Polignac number, because 29890125 - 2⁴ = 29890109 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 29890125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 183294 + ... + 183456.

It is an arithmetic number, because the mean of its divisors is an integer number (1505959).

Almost surely, 2^29890125 is an apocalyptic number.

29890125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29890125 is a deficient number, since it is larger than the sum of its proper divisors (24324399).

29890125 is an equidigital number, since it uses as much as digits as its factorization.

29890125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 29890125 is about 5467.1862049870. The cubic root of 29890125 is about 310.3434452365.

The spelling of 29890125 in words is "twenty-nine million, eight hundred ninety thousand, one hundred twenty-five".