537478331 has 4 divisors (see below), whose sum is σ = 578822832. Its totient is φ = 496133832.

The previous prime is 537478241. The next prime is 537478339. The reversal of 537478331 is 133874735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133874735 = 5 ⋅26774947.

It is a cyclic number.

It is not a de Polignac number, because 537478331 - 2¹⁰ = 537477307 is a prime.

It is a super-2 number, since 2×537478331² = 577765912589091122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537478339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20672231 + ... + 20672256.

It is an arithmetic number, because the mean of its divisors is an integer number (144705708).

Almost surely, 2^537478331 is an apocalyptic number.

537478331 is a deficient number, since it is larger than the sum of its proper divisors (41344501).

537478331 is a wasteful number, since it uses less digits than its factorization.

537478331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41344500.

The product of its digits is 211680, while the sum is 41.

The square root of 537478331 is about 23183.5789083567. The cubic root of 537478331 is about 813.0557395894.

The spelling of 537478331 in words is "five hundred thirty-seven million, four hundred seventy-eight thousand, three hundred thirty-one".