65225578 has 16 divisors (see below), whose sum is σ = 107148096. Its totient is φ = 29532640.

The previous prime is 65225569. The next prime is 65225579. The reversal of 65225578 is 87552256.

It is a self number, because there is not a number n which added to its sum of digits gives 65225578.

It is not an unprimeable number, because it can be changed into a prime (65225579) 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, 150 + ... + 11422.

It is an arithmetic number, because the mean of its divisors is an integer number (6696756).

Almost surely, 2^65225578 is an apocalyptic number.

65225578 is a deficient number, since it is larger than the sum of its proper divisors (41922518).

65225578 is a wasteful number, since it uses less digits than its factorization.

65225578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11549.

The product of its digits is 168000, while the sum is 40.

The square root of 65225578 is about 8076.2353853760. The cubic root of 65225578 is about 402.5371605159.

It can be divided in two parts, 6522 and 5578, that added together give a square (12100 = 110²).

The spelling of 65225578 in words is "sixty-five million, two hundred twenty-five thousand, five hundred seventy-eight".