65570652 has 36 divisors (see below), whose sum is σ = 189427056. Its totient is φ = 18734400.

The previous prime is 65570651. The next prime is 65570663. The reversal of 65570652 is 25607556.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65570651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129849 + ... + 130352.

Almost surely, 2^65570652 is an apocalyptic number.

It is an amenable number.

65570652 is an abundant number, since it is smaller than the sum of its proper divisors (123856404).

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

65570652 is a wasteful number, since it uses less digits than its factorization.

65570652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260218 (or 260213 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 65570652 is about 8097.5707468351. The cubic root of 65570652 is about 403.2457826650.

The spelling of 65570652 in words is "sixty-five million, five hundred seventy thousand, six hundred fifty-two".