64852550 has 48 divisors (see below), whose sum is σ = 139038720. Its totient is φ = 22044960.

The previous prime is 64852547. The next prime is 64852553. The reversal of 64852550 is 5525846.

It is an interprime number because it is at equal distance from previous prime (64852547) and next prime (64852553).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 64852550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64852553) 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, 43721 + ... + 45179.

It is an arithmetic number, because the mean of its divisors is an integer number (2896640).

Almost surely, 2^64852550 is an apocalyptic number.

64852550 is an abundant number, since it is smaller than the sum of its proper divisors (74186170).

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

64852550 is a wasteful number, since it uses less digits than its factorization.

64852550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 64852550 is about 8053.1080956361. The cubic root of 64852550 is about 401.7683169516.

The spelling of 64852550 in words is "sixty-four million, eight hundred fifty-two thousand, five hundred fifty".