53306397 has 16 divisors (see below), whose sum is σ = 79152960. Its totient is φ = 35456400.

The previous prime is 53306377. The next prime is 53306399. The reversal of 53306397 is 79360335.

53306397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53306397 - 2⁷ = 53306269 is a prime.

It is a super-2 number, since 2×53306397² = 5683143922243218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53306399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11247 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (4947060).

Almost surely, 2^53306397 is an apocalyptic number.

It is an amenable number.

53306397 is a deficient number, since it is larger than the sum of its proper divisors (25846563).

53306397 is a wasteful number, since it uses less digits than its factorization.

53306397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 36.

The square root of 53306397 is about 7301.1229958137. The cubic root of 53306397 is about 376.3510307305.

The spelling of 53306397 in words is "fifty-three million, three hundred six thousand, three hundred ninety-seven".