64791552 has 176 divisors, whose sum is σ = 207516672. Its totient is φ = 17571840.

The previous prime is 64791541. The next prime is 64791553. The reversal of 64791552 is 25519746.

It is a self number, because there is not a number n which added to its sum of digits gives 64791552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64791553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494527 + ... + 494657.

It is an arithmetic number, because the mean of its divisors is an integer number (1179072).

Almost surely, 2^64791552 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 64791552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103758336).

64791552 is an abundant number, since it is smaller than the sum of its proper divisors (142725120).

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

64791552 is a wasteful number, since it uses less digits than its factorization.

64791552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 166 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 64791552 is about 8049.3199712771. The cubic root of 64791552 is about 401.6423144464.

The spelling of 64791552 in words is "sixty-four million, seven hundred ninety-one thousand, five hundred fifty-two".