53018147 has 12 divisors (see below), whose sum is σ = 66419136. Its totient is φ = 41947920.

The previous prime is 53018137. The next prime is 53018171. The reversal of 53018147 is 74181035.

It is not a de Polignac number, because 53018147 - 2⁸ = 53017891 is a prime.

It is a super-2 number, since 2×53018147² = 5621847822627218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53018107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40979 + ... + 42252.

It is an arithmetic number, because the mean of its divisors is an integer number (5534928).

Almost surely, 2^53018147 is an apocalyptic number.

53018147 is a deficient number, since it is larger than the sum of its proper divisors (13400989).

53018147 is a wasteful number, since it uses less digits than its factorization.

53018147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83258 (or 83251 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 53018147 is about 7281.3561236901. The cubic root of 53018147 is about 375.6714417990.

The spelling of 53018147 in words is "fifty-three million, eighteen thousand, one hundred forty-seven".