169057025 has 12 divisors (see below), whose sum is σ = 209931132. Its totient is φ = 135051840.

The previous prime is 169056997. The next prime is 169057081. The reversal of 169057025 is 520750961.

It can be written as a sum of positive squares in 6 ways, for example, as 7360369 + 161696656 = 2713^2 + 12716^2 .

It is not a de Polignac number, because 169057025 - 2¹⁰ = 169056001 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 14459 + ... + 23391.

It is an arithmetic number, because the mean of its divisors is an integer number (17494261).

Almost surely, 2^169057025 is an apocalyptic number.

It is an amenable number.

169057025 is a deficient number, since it is larger than the sum of its proper divisors (40874107).

169057025 is an equidigital number, since it uses as much as digits as its factorization.

169057025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700 (or 9695 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 169057025 is about 13002.1930842454. The cubic root of 169057025 is about 552.9396594605.

The spelling of 169057025 in words is "one hundred sixty-nine million, fifty-seven thousand, twenty-five".