165525627 has 4 divisors (see below), whose sum is σ = 220700840. Its totient is φ = 110350416.

The previous prime is 165525623. The next prime is 165525629. The reversal of 165525627 is 726525561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726525561 = 3 ⋅242175187.

It is not a de Polignac number, because 165525627 - 2² = 165525623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165525623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27587602 + ... + 27587607.

It is an arithmetic number, because the mean of its divisors is an integer number (55175210).

Almost surely, 2^165525627 is an apocalyptic number.

165525627 is a deficient number, since it is larger than the sum of its proper divisors (55175213).

165525627 is an equidigital number, since it uses as much as digits as its factorization.

165525627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55175212.

The product of its digits is 126000, while the sum is 39.

The square root of 165525627 is about 12865.6763133541. The cubic root of 165525627 is about 549.0624545324.

The spelling of 165525627 in words is "one hundred sixty-five million, five hundred twenty-five thousand, six hundred twenty-seven".