53948381 has 4 divisors (see below), whose sum is σ = 55808700. Its totient is φ = 52088064.

The previous prime is 53948371. The next prime is 53948407. The reversal of 53948381 is 18384935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13942756 + 40005625 = 3734^2 + 6325^2 .

It is a cyclic number.

It is not a de Polignac number, because 53948381 - 2¹⁰ = 53947357 is a prime.

It is a super-2 number, since 2×53948381² = 5820855625042322, 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 (53948311) 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, 930116 + ... + 930173.

It is an arithmetic number, because the mean of its divisors is an integer number (13952175).

Almost surely, 2^53948381 is an apocalyptic number.

It is an amenable number.

53948381 is a deficient number, since it is larger than the sum of its proper divisors (1860319).

53948381 is a wasteful number, since it uses less digits than its factorization.

53948381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860318.

The product of its digits is 103680, while the sum is 41.

The square root of 53948381 is about 7344.9561605227. The cubic root of 53948381 is about 377.8558397862.

The spelling of 53948381 in words is "fifty-three million, nine hundred forty-eight thousand, three hundred eighty-one".