65520151 has 8 divisors (see below), whose sum is σ = 69843200. Its totient is φ = 61284600.

The previous prime is 65520139. The next prime is 65520157. The reversal of 65520151 is 15102556.

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

It is a cyclic number.

It is not a de Polignac number, because 65520151 - 2¹⁹ = 64995863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65520157) 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, 20325 + ... + 23326.

It is an arithmetic number, because the mean of its divisors is an integer number (8730400).

Almost surely, 2^65520151 is an apocalyptic number.

65520151 is a deficient number, since it is larger than the sum of its proper divisors (4323049).

65520151 is a wasteful number, since it uses less digits than its factorization.

65520151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43749.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 65520151 is about 8094.4518653211. The cubic root of 65520151 is about 403.1422325506.

The spelling of 65520151 in words is "sixty-five million, five hundred twenty thousand, one hundred fifty-one".