65490061 has 8 divisors (see below), whose sum is σ = 80603264. Its totient is φ = 51816240.

The previous prime is 65490053. The next prime is 65490101. The reversal of 65490061 is 16009456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65490061 - 2³ = 65490053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65490031) 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, 359745 + ... + 359926.

It is an arithmetic number, because the mean of its divisors is an integer number (10075408).

Almost surely, 2^65490061 is an apocalyptic number.

It is an amenable number.

65490061 is a deficient number, since it is larger than the sum of its proper divisors (15113203).

65490061 is a wasteful number, since it uses less digits than its factorization.

65490061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719691.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 65490061 is about 8092.5929713535. The cubic root of 65490061 is about 403.0805090094.

The spelling of 65490061 in words is "sixty-five million, four hundred ninety thousand, sixty-one".