64011552 has 48 divisors (see below), whose sum is σ = 183308832. Its totient is φ = 19397120.

The previous prime is 64011547. The next prime is 64011587. The reversal of 64011552 is 25511046.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29253 + ... + 31364.

It is an arithmetic number, because the mean of its divisors is an integer number (3818934).

Almost surely, 2^64011552 is an apocalyptic number.

It is an amenable number.

64011552 is an abundant number, since it is smaller than the sum of its proper divisors (119297280).

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

64011552 is a wasteful number, since it uses less digits than its factorization.

64011552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60641 (or 60633 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 64011552 is about 8000.7219674227. The cubic root of 64011552 is about 400.0240652188.

Adding to 64011552 its reverse (25511046), we get a palindrome (89522598).

The spelling of 64011552 in words is "sixty-four million, eleven thousand, five hundred fifty-two".