66053501 has 8 divisors (see below), whose sum is σ = 68620608. Its totient is φ = 63532000.

The previous prime is 66053489. The next prime is 66053513. The reversal of 66053501 is 10535066.

It is an interprime number because it is at equal distance from previous prime (66053489) and next prime (66053513).

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 66053501 - 2¹⁰ = 66052477 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 (66053531) 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, 8435 + ... + 14256.

It is an arithmetic number, because the mean of its divisors is an integer number (8577576).

Almost surely, 2^66053501 is an apocalyptic number.

It is an amenable number.

66053501 is a deficient number, since it is larger than the sum of its proper divisors (2567107).

66053501 is a wasteful number, since it uses less digits than its factorization.

66053501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22803.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 66053501 is about 8127.3304965407. The cubic root of 66053501 is about 404.2331697325.

Adding to 66053501 its reverse (10535066), we get a palindrome (76588567).

The spelling of 66053501 in words is "sixty-six million, fifty-three thousand, five hundred one".