53336664 has 32 divisors (see below), whose sum is σ = 148158000. Its totient is φ = 17778816.

The previous prime is 53336659. The next prime is 53336669. The reversal of 53336664 is 46663335.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53336659) and next prime (53336669).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53336669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123249 + ... + 123680.

Almost surely, 2^53336664 is an apocalyptic number.

53336664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

53336664 is an abundant number, since it is smaller than the sum of its proper divisors (94821336).

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

53336664 is a wasteful number, since it uses less digits than its factorization.

53336664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246944 (or 246934 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

The square root of 53336664 is about 7303.1954650002. The cubic root of 53336664 is about 376.4222470826.

Adding to 53336664 its reverse (46663335), we get a palindrome (99999999).

The spelling of 53336664 in words is "fifty-three million, three hundred thirty-six thousand, six hundred sixty-four".