53649900 has 54 divisors (see below), whose sum is σ = 168165452. Its totient is φ = 14306400.

The previous prime is 53649899. The next prime is 53649917. The reversal of 53649900 is 994635.

53649900 is a `hidden beast` number, since 5 + 3 + 649 + 9 + 0 + 0 = 666.

53649900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 28906 + ... + 30705.

Almost surely, 2^53649900 is an apocalyptic number.

53649900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53649900 is an abundant number, since it is smaller than the sum of its proper divisors (114515552).

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

53649900 is a wasteful number, since it uses less digits than its factorization.

53649900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59631 (or 59621 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 53649900 is about 7324.6092045924. The cubic root of 53649900 is about 377.1576944674.

The spelling of 53649900 in words is "fifty-three million, six hundred forty-nine thousand, nine hundred".