162520253 has 4 divisors (see below), whose sum is σ = 185737440. Its totient is φ = 139303068.

The previous prime is 162520229. The next prime is 162520271. The reversal of 162520253 is 352025261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 162520253 - 2⁸ = 162519997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162520213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11608583 + ... + 11608596.

It is an arithmetic number, because the mean of its divisors is an integer number (46434360).

Almost surely, 2^162520253 is an apocalyptic number.

It is an amenable number.

162520253 is a deficient number, since it is larger than the sum of its proper divisors (23217187).

162520253 is an equidigital number, since it uses as much as digits as its factorization.

162520253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23217186.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 162520253 is about 12748.3431472486. The cubic root of 162520253 is about 545.7191113376.

The spelling of 162520253 in words is "one hundred sixty-two million, five hundred twenty thousand, two hundred fifty-three".