53302381 has 4 divisors (see below), whose sum is σ = 58148064. Its totient is φ = 48456700.

The previous prime is 53302369. The next prime is 53302393. The reversal of 53302381 is 18320335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (53302369) and next prime (53302393).

It is a cyclic number.

It is not a de Polignac number, because 53302381 - 2⁹ = 53301869 is a prime.

It is a super-2 number, since 2×53302381² = 5682287640538322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53302321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2422825 + ... + 2422846.

It is an arithmetic number, because the mean of its divisors is an integer number (14537016).

Almost surely, 2^53302381 is an apocalyptic number.

It is an amenable number.

53302381 is a deficient number, since it is larger than the sum of its proper divisors (4845683).

53302381 is a wasteful number, since it uses less digits than its factorization.

53302381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845682.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 53302381 is about 7300.8479644491. The cubic root of 53302381 is about 376.3415793089.

The spelling of 53302381 in words is "fifty-three million, three hundred two thousand, three hundred eighty-one".