65200725 has 36 divisors (see below), whose sum is σ = 117500292. Its totient is φ = 34560000.

The previous prime is 65200721. The next prime is 65200727. The reversal of 65200725 is 52700256.

65200725 is a `hidden beast` number, since 652 + 0 + 0 + 7 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 848241 + 64352484 = 921^2 + 8022^2 .

It is not a de Polignac number, because 65200725 - 2² = 65200721 is a prime.

It is a super-2 number, since 2×65200725² = 8502269081051250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65200721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39925 + ... + 41525.

It is an arithmetic number, because the mean of its divisors is an integer number (3263897).

Almost surely, 2^65200725 is an apocalyptic number.

It is an amenable number.

65200725 is a deficient number, since it is larger than the sum of its proper divisors (52299567).

65200725 is a wasteful number, since it uses less digits than its factorization.

65200725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 65200725 is about 8074.6965887270. The cubic root of 65200725 is about 402.4860275746.

The spelling of 65200725 in words is "sixty-five million, two hundred thousand, seven hundred twenty-five".