53001381 has 4 divisors (see below), whose sum is σ = 70668512. Its totient is φ = 35334252.

The previous prime is 53001379. The next prime is 53001391. The reversal of 53001381 is 18310035.

It is a happy number.

53001381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 53001381 - 2¹ = 53001379 is a prime.

It is a super-2 number, since 2×53001381² = 5618292775814322, 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 (53001341) 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 3 ways as a sum of consecutive naturals, for example, 8833561 + ... + 8833566.

It is an arithmetic number, because the mean of its divisors is an integer number (17667128).

Almost surely, 2^53001381 is an apocalyptic number.

It is an amenable number.

53001381 is a deficient number, since it is larger than the sum of its proper divisors (17667131).

53001381 is a wasteful number, since it uses less digits than its factorization.

53001381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17667130.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 53001381 is about 7280.2047361321. The cubic root of 53001381 is about 375.6318379288.

The spelling of 53001381 in words is "fifty-three million, one thousand, three hundred eighty-one".