65261260 has 24 divisors (see below), whose sum is σ = 137214000. Its totient is φ = 26073024.

The previous prime is 65261237. The next prime is 65261263. The reversal of 65261260 is 6216256.

It is not an unprimeable number, because it can be changed into a prime (65261263) 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, 22366 + ... + 25114.

It is an arithmetic number, because the mean of its divisors is an integer number (5717250).

Almost surely, 2^65261260 is an apocalyptic number.

It is an amenable number.

65261260 is an abundant number, since it is smaller than the sum of its proper divisors (71952740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65261260 is a wasteful number, since it uses less digits than its factorization.

65261260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 65261260 is about 8078.4441571382. Note that the first 3 decimals coincide. The cubic root of 65261260 is about 402.6105505010.

The spelling of 65261260 in words is "sixty-five million, two hundred sixty-one thousand, two hundred sixty".