168525427 has 4 divisors (see below), whose sum is σ = 192600496. Its totient is φ = 144450360.

The previous prime is 168525419. The next prime is 168525431. The reversal of 168525427 is 724525861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724525861 = 4327 ⋅167443.

It is a cyclic number.

It is not a de Polignac number, because 168525427 - 2³ = 168525419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168525427.

It is not an unprimeable number, because it can be changed into a prime (168523427) 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, 12037524 + ... + 12037537.

It is an arithmetic number, because the mean of its divisors is an integer number (48150124).

Almost surely, 2^168525427 is an apocalyptic number.

168525427 is a deficient number, since it is larger than the sum of its proper divisors (24075069).

168525427 is an equidigital number, since it uses as much as digits as its factorization.

168525427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24075068.

The product of its digits is 134400, while the sum is 40.

The square root of 168525427 is about 12981.7343602463. The cubic root of 168525427 is about 552.3594799713.

The spelling of 168525427 in words is "one hundred sixty-eight million, five hundred twenty-five thousand, four hundred twenty-seven".