65222560 has 48 divisors (see below), whose sum is σ = 165946536. Its totient is φ = 24081408.

The previous prime is 65222551. The next prime is 65222561. The reversal of 65222560 is 6522256.

It can be written as a sum of positive squares in 4 ways, for example, as 48608784 + 16613776 = 6972^2 + 4076^2 .

It is not an unprimeable number, because it can be changed into a prime (65222561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13599 + ... + 17758.

Almost surely, 2^65222560 is an apocalyptic number.

It is an amenable number.

65222560 is an abundant number, since it is smaller than the sum of its proper divisors (100723976).

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

65222560 is a wasteful number, since it uses less digits than its factorization.

65222560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31385 (or 31377 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 65222560 is about 8076.0485387348. The cubic root of 65222560 is about 402.5309519297.

The spelling of 65222560 in words is "sixty-five million, two hundred twenty-two thousand, five hundred sixty".