662553 has 16 divisors (see below), whose sum is σ = 1002240. Its totient is φ = 432432.

The previous prime is 662551. The next prime is 662567. The reversal of 662553 is 355266.

It is not a de Polignac number, because 662553 - 2¹ = 662551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (662551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (62640).

2⁶⁶²⁵⁵³ is an apocalyptic number.

It is an amenable number.

662553 is a deficient number, since it is larger than the sum of its proper divisors (339687).

662553 is a wasteful number, since it uses less digits than its factorization.

662553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 662553 is about 813.9735867951. The cubic root of 662553 is about 87.1779946858.

It can be divided in two parts, 66255 and 3, that multiplied together give a triangular number (198765 = T₆₃₀).

The spelling of 662553 in words is "six hundred sixty-two thousand, five hundred fifty-three".