524953381 has 4 divisors (see below), whose sum is σ = 537757164. Its totient is φ = 512149600.

The previous prime is 524953369. The next prime is 524953409. The reversal of 524953381 is 183359425.

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 89605156 + 435348225 = 9466^2 + 20865^2 .

It is a cyclic number.

It is not a de Polignac number, because 524953381 - 2¹³ = 524945189 is a prime.

It is a super-2 number, since 2×524953381² = 551152104446662322, 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 (524953361) 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, 6401830 + ... + 6401911.

It is an arithmetic number, because the mean of its divisors is an integer number (134439291).

Almost surely, 2^524953381 is an apocalyptic number.

It is an amenable number.

524953381 is a deficient number, since it is larger than the sum of its proper divisors (12803783).

524953381 is a wasteful number, since it uses less digits than its factorization.

524953381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12803782.

The product of its digits is 129600, while the sum is 40.

The square root of 524953381 is about 22911.8611422119. The cubic root of 524953381 is about 806.6904440737.

The spelling of 524953381 in words is "five hundred twenty-four million, nine hundred fifty-three thousand, three hundred eighty-one".