54651636 has 72 divisors (see below), whose sum is σ = 153613824. Its totient is φ = 16269120.

The previous prime is 54651601. The next prime is 54651637. The reversal of 54651636 is 63615645.

54651636 is a `hidden beast` number, since 546 + 51 + 63 + 6 = 666.

54651636 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

54651636 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 54651636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54651637) 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, 12625 + ... + 16391.

Almost surely, 2^54651636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54651636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76806912).

54651636 is an abundant number, since it is smaller than the sum of its proper divisors (98962188).

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

54651636 is a wasteful number, since it uses less digits than its factorization.

54651636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821 (or 3816 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 54651636 is about 7392.6744822155. The cubic root of 54651636 is about 379.4906286906.

The spelling of 54651636 in words is "fifty-four million, six hundred fifty-one thousand, six hundred thirty-six".