635562 has 48 divisors (see below), whose sum is σ = 1527552. Its totient is φ = 190080.

The previous prime is 635533. The next prime is 635563. The reversal of 635562 is 265536.

635562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (5400) is a multiple of the sum of its prime divisors (120).

It is not an unprimeable number, because it can be changed into a prime (635563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9453 + ... + 9519.

It is an arithmetic number, because the mean of its divisors is an integer number (31824).

2⁶³⁵⁵⁶² is an apocalyptic number.

635562 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 635562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763776).

635562 is an abundant number, since it is smaller than the sum of its proper divisors (891990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

635562 is a wasteful number, since it uses less digits than its factorization.

635562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 120 counting only the distinct ones).

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

The square root of 635562 is about 797.2214246996. The cubic root of 635562 is about 85.9777299466.

It can be divided in two parts, 63 and 5562, that added together give a square (5625 = 75²).

The spelling of 635562 in words is "six hundred thirty-five thousand, five hundred sixty-two".