65224552 has 8 divisors (see below), whose sum is σ = 122296050. Its totient is φ = 32612272.

The previous prime is 65224547. The next prime is 65224553. The reversal of 65224552 is 25542256.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 21585316 = 6606^2 + 4646^2 .

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

It is not an unprimeable number, because it can be changed into a prime (65224553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4076527 + ... + 4076542.

Almost surely, 2^65224552 is an apocalyptic number.

It is an amenable number.

65224552 is a deficient number, since it is larger than the sum of its proper divisors (57071498).

65224552 is a wasteful number, since it uses less digits than its factorization.

65224552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153075 (or 8153071 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 65224552 is about 8076.1718654323. The cubic root of 65224552 is about 402.5350498650.

The spelling of 65224552 in words is "sixty-five million, two hundred twenty-four thousand, five hundred fifty-two".