65152993 has 8 divisors (see below), whose sum is σ = 69081768. Its totient is φ = 61234944.

The previous prime is 65152991. The next prime is 65152999. The reversal of 65152993 is 39925156.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22733824 + 42419169 = 4768^2 + 6513^2 .

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 65152993 - 2¹ = 65152991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65152991) 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, 12255 + ... + 16747.

It is an arithmetic number, because the mean of its divisors is an integer number (8635221).

Almost surely, 2^65152993 is an apocalyptic number.

It is an amenable number.

65152993 is a deficient number, since it is larger than the sum of its proper divisors (3928775).

65152993 is a wasteful number, since it uses less digits than its factorization.

65152993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363.

The product of its digits is 72900, while the sum is 40.

The square root of 65152993 is about 8071.7403947352. The cubic root of 65152993 is about 402.3877865756.

The spelling of 65152993 in words is "sixty-five million, one hundred fifty-two thousand, nine hundred ninety-three".