162553603 has 4 divisors (see below), whose sum is σ = 162685000. Its totient is φ = 162422208.

The previous prime is 162553583. The next prime is 162553619. The reversal of 162553603 is 306355261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306355261 = 659 ⋅464879.

It is a cyclic number.

It is not a de Polignac number, because 162553603 - 2¹⁷ = 162422531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162553663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63825 + ... + 66322.

It is an arithmetic number, because the mean of its divisors is an integer number (40671250).

Almost surely, 2^162553603 is an apocalyptic number.

162553603 is a deficient number, since it is larger than the sum of its proper divisors (131397).

162553603 is a wasteful number, since it uses less digits than its factorization.

162553603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131396.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 162553603 is about 12749.6510932653. The cubic root of 162553603 is about 545.7564369165.

The spelling of 162553603 in words is "one hundred sixty-two million, five hundred fifty-three thousand, six hundred three".