64552733 has 4 divisors (see below), whose sum is σ = 73774560. Its totient is φ = 55330908.

The previous prime is 64552729. The next prime is 64552751. The reversal of 64552733 is 33725546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64552733 - 2² = 64552729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64552693 and 64552702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64552783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4610903 + ... + 4610916.

It is an arithmetic number, because the mean of its divisors is an integer number (18443640).

Almost surely, 2^64552733 is an apocalyptic number.

It is an amenable number.

64552733 is a deficient number, since it is larger than the sum of its proper divisors (9221827).

64552733 is an equidigital number, since it uses as much as digits as its factorization.

64552733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221826.

The product of its digits is 75600, while the sum is 35.

The square root of 64552733 is about 8034.4715445386. The cubic root of 64552733 is about 401.1482278614.

The spelling of 64552733 in words is "sixty-four million, five hundred fifty-two thousand, seven hundred thirty-three".