53825381 has 4 divisors (see below), whose sum is σ = 53851392. Its totient is φ = 53799372.

The previous prime is 53825377. The next prime is 53825407. The reversal of 53825381 is 18352835.

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 a cyclic number.

It is not a de Polignac number, because 53825381 - 2² = 53825377 is a prime.

It is a super-2 number, since 2×53825381² = 5794343279590322, 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 (53825311) 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, 9605 + ... + 14138.

It is an arithmetic number, because the mean of its divisors is an integer number (13462848).

Almost surely, 2^53825381 is an apocalyptic number.

It is an amenable number.

53825381 is a deficient number, since it is larger than the sum of its proper divisors (26011).

53825381 is a wasteful number, since it uses less digits than its factorization.

53825381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26010.

The product of its digits is 28800, while the sum is 35.

The square root of 53825381 is about 7336.5782896388. The cubic root of 53825381 is about 377.5684562197.

The spelling of 53825381 in words is "fifty-three million, eight hundred twenty-five thousand, three hundred eighty-one".