53645011 has 8 divisors (see below), whose sum is σ = 61482240. Its totient is φ = 45851208.

The previous prime is 53645003. The next prime is 53645021. The reversal of 53645011 is 11054635.

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 53645011 - 2³ = 53645003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53645021) 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, 8161 + ... + 13186.

It is an arithmetic number, because the mean of its divisors is an integer number (7685280).

Almost surely, 2^53645011 is an apocalyptic number.

53645011 is a deficient number, since it is larger than the sum of its proper divisors (7837229).

53645011 is a wasteful number, since it uses less digits than its factorization.

53645011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 53645011 is about 7324.2754590471. The cubic root of 53645011 is about 377.1462375962.

Adding to 53645011 its reverse (11054635), we get a palindrome (64699646).

The spelling of 53645011 in words is "fifty-three million, six hundred forty-five thousand, eleven".