65275490 has 32 divisors (see below), whose sum is σ = 136491264. Its totient is φ = 22011840.

The previous prime is 65275451. The next prime is 65275493. The reversal of 65275490 is 9457256.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65275493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3374 + ... + 11913.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2^65275490 is an apocalyptic number.

65275490 is an abundant number, since it is smaller than the sum of its proper divisors (71215774).

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

65275490 is a wasteful number, since it uses less digits than its factorization.

65275490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15362.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 65275490 is about 8079.3248480303. The cubic root of 65275490 is about 402.6398110034.

The spelling of 65275490 in words is "sixty-five million, two hundred seventy-five thousand, four hundred ninety".