53027867491 has 32 divisors (see below), whose sum is σ = 57650400000. Its totient is φ = 48594124800.

The previous prime is 53027867449. The next prime is 53027867507. The reversal of 53027867491 is 19476872035.

It is a 15-Lehmer number, since φ(53027867491) divides (53027867491-1)¹⁵.

It is a cyclic number.

It is not a de Polignac number, because 53027867491 - 2⁹ = 53027866979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53027867591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42455635 + ... + 42456883.

It is an arithmetic number, because the mean of its divisors is an integer number (1801575000).

It is a 3-persistent number, because k⋅53027867491 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2^53027867491 is an apocalyptic number.

53027867491 is a deficient number, since it is larger than the sum of its proper divisors (4622532509).

53027867491 is a wasteful number, since it uses less digits than its factorization.

53027867491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 53027867491 in words is "fifty-three billion, twenty-seven million, eight hundred sixty-seven thousand, four hundred ninety-one".