53263620 has 36 divisors (see below), whose sum is σ = 161566860. Its totient is φ = 14203584.

The previous prime is 53263619. The next prime is 53263649. The reversal of 53263620 is 2636235.

53263620 is a `hidden beast` number, since 5 + 3 + 2 + 636 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12278016 + 40985604 = 3504^2 + 6402^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147775 + ... + 148134.

Almost surely, 2^53263620 is an apocalyptic number.

It is an amenable number.

53263620 is an abundant number, since it is smaller than the sum of its proper divisors (108303240).

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

53263620 is a wasteful number, since it uses less digits than its factorization.

53263620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295924 (or 295919 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 53263620 is about 7298.1929270197. The cubic root of 53263620 is about 376.2503331454.

Adding to 53263620 its reverse (2636235), we get a palindrome (55899855).

The spelling of 53263620 in words is "fifty-three million, two hundred sixty-three thousand, six hundred twenty".