65225797 has 32 divisors (see below), whose sum is σ = 83578880. Its totient is φ = 49533120.

The previous prime is 65225789. The next prime is 65225819. The reversal of 65225797 is 79752256.

It is not a de Polignac number, because 65225797 - 2³ = 65225789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65225737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309022 + ... + 309232.

It is an arithmetic number, because the mean of its divisors is an integer number (2611840).

Almost surely, 2^65225797 is an apocalyptic number.

It is an amenable number.

65225797 is a deficient number, since it is larger than the sum of its proper divisors (18353083).

65225797 is a wasteful number, since it uses less digits than its factorization.

65225797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353.

The product of its digits is 264600, while the sum is 43.

The square root of 65225797 is about 8076.2489436619. The cubic root of 65225797 is about 402.5376110321.

The spelling of 65225797 in words is "sixty-five million, two hundred twenty-five thousand, seven hundred ninety-seven".