66052552 has 8 divisors (see below), whose sum is σ = 123848550. Its totient is φ = 33026272.

The previous prime is 66052529. The next prime is 66052577. The reversal of 66052552 is 25525066.

It can be written as a sum of positive squares in only one way, i.e., 42954916 + 23097636 = 6554^2 + 4806^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128277 + ... + 4128292.

Almost surely, 2^66052552 is an apocalyptic number.

It is an amenable number.

66052552 is a deficient number, since it is larger than the sum of its proper divisors (57795998).

66052552 is a wasteful number, since it uses less digits than its factorization.

66052552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256575 (or 8256571 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 66052552 is about 8127.2721130771. The cubic root of 66052552 is about 404.2312338315.

The spelling of 66052552 in words is "sixty-six million, fifty-two thousand, five hundred fifty-two".