53305031 has 8 divisors (see below), whose sum is σ = 57612240. Its totient is φ = 49027392.

The previous prime is 53305019. The next prime is 53305039. The reversal of 53305031 is 13050335.

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 53305031 - 2¹⁸ = 53042887 is a prime.

It is a super-2 number, since 2×53305031² = 5682852659821922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53304994 and 53305012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53305039) 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, 3566 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (7201530).

Almost surely, 2^53305031 is an apocalyptic number.

53305031 is a deficient number, since it is larger than the sum of its proper divisors (4307209).

53305031 is a wasteful number, since it uses less digits than its factorization.

53305031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14785.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 53305031 is about 7301.0294479614. The cubic root of 53305031 is about 376.3478159825.

Adding to 53305031 its reverse (13050335), we get a palindrome (66355366).

The spelling of 53305031 in words is "fifty-three million, three hundred five thousand, thirty-one".