64606552 has 8 divisors (see below), whose sum is σ = 121137300. Its totient is φ = 32303272.

The previous prime is 64606541. The next prime is 64606583. The reversal of 64606552 is 25560646.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64606552² = 8348013122657408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4037902 + ... + 4037917.

Almost surely, 2^64606552 is an apocalyptic number.

It is an amenable number.

64606552 is a deficient number, since it is larger than the sum of its proper divisors (56530748).

64606552 is a wasteful number, since it uses less digits than its factorization.

64606552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8075825 (or 8075821 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 64606552 is about 8037.8201024905. The cubic root of 64606552 is about 401.2596788587.

The spelling of 64606552 in words is "sixty-four million, six hundred six thousand, five hundred fifty-two".