65731501 has 16 divisors (see below), whose sum is σ = 75437568. Its totient is φ = 56721600.

The previous prime is 65731483. The next prime is 65731531. The reversal of 65731501 is 10513756.

It is a cyclic number.

It is not a de Polignac number, because 65731501 - 2⁷ = 65731373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65731501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65731531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16255 + ... + 19891.

It is an arithmetic number, because the mean of its divisors is an integer number (4714848).

Almost surely, 2^65731501 is an apocalyptic number.

It is an amenable number.

65731501 is a deficient number, since it is larger than the sum of its proper divisors (9706067).

65731501 is a wasteful number, since it uses less digits than its factorization.

65731501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 65731501 is about 8107.4965926604. The cubic root of 65731501 is about 403.5752426417.

The spelling of 65731501 in words is "sixty-five million, seven hundred thirty-one thousand, five hundred one".