65550572 has 12 divisors (see below), whose sum is σ = 121461480. Its totient is φ = 30847296.

The previous prime is 65550557. The next prime is 65550581. The reversal of 65550572 is 27505556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481922 + ... + 482057.

It is an arithmetic number, because the mean of its divisors is an integer number (10121790).

Almost surely, 2^65550572 is an apocalyptic number.

It is an amenable number.

65550572 is a deficient number, since it is larger than the sum of its proper divisors (55910908).

65550572 is a wasteful number, since it uses less digits than its factorization.

65550572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964000 (or 963998 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 65550572 is about 8096.3307738753. The cubic root of 65550572 is about 403.2046158637.

The spelling of 65550572 in words is "sixty-five million, five hundred fifty thousand, five hundred seventy-two".