53305971 has 16 divisors (see below), whose sum is σ = 71938560. Its totient is φ = 35108640.

The previous prime is 53305951. The next prime is 53305997. The reversal of 53305971 is 17950335.

It is not a de Polignac number, because 53305971 - 2⁶ = 53305907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53305951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140460 + ... + 140838.

It is an arithmetic number, because the mean of its divisors is an integer number (4496160).

Almost surely, 2^53305971 is an apocalyptic number.

53305971 is a deficient number, since it is larger than the sum of its proper divisors (18632589).

53305971 is a wasteful number, since it uses less digits than its factorization.

53305971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 53305971 is about 7301.0938221612. The cubic root of 53305971 is about 376.3500281869.

The spelling of 53305971 in words is "fifty-three million, three hundred five thousand, nine hundred seventy-one".