164163525 has 24 divisors (see below), whose sum is σ = 276544800. Its totient is φ = 85899840.

The previous prime is 164163523. The next prime is 164163529. The reversal of 164163525 is 525361461.

It is not a de Polignac number, because 164163525 - 2¹ = 164163523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164163521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16675 + ... + 24624.

It is an arithmetic number, because the mean of its divisors is an integer number (11522700).

Almost surely, 2^164163525 is an apocalyptic number.

164163525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164163525 is a deficient number, since it is larger than the sum of its proper divisors (112381275).

164163525 is a wasteful number, since it uses less digits than its factorization.

164163525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41365 (or 41360 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 164163525 is about 12812.6314627402. The cubic root of 164163525 is about 547.5522353782.

The spelling of 164163525 in words is "one hundred sixty-four million, one hundred sixty-three thousand, five hundred twenty-five".