5291052381 has 16 divisors (see below), whose sum is σ = 7986496320. Its totient is φ = 3460813200.

The previous prime is 5291052373. The next prime is 5291052391. The reversal of 5291052381 is 1832501925.

5291052381 is a `hidden beast` number, since 52 + 9 + 1 + 0 + 523 + 81 = 666.

It is not a de Polignac number, because 5291052381 - 2³ = 5291052373 is a prime.

It is a super-2 number, since 2×5291052381² = 55990470596971538322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291052311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847295 + ... + 1850156.

It is an arithmetic number, because the mean of its divisors is an integer number (499156020).

Almost surely, 2^5291052381 is an apocalyptic number.

It is an amenable number.

5291052381 is a deficient number, since it is larger than the sum of its proper divisors (2695443939).

5291052381 is a wasteful number, since it uses less digits than its factorization.

5291052381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697513 (or 3697507 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 5291052381 is about 72739.6204348084. The cubic root of 5291052381 is about 1742.5316980676.

The spelling of 5291052381 in words is "five billion, two hundred ninety-one million, fifty-two thousand, three hundred eighty-one".