537061491 has 6 divisors (see below), whose sum is σ = 775755500. Its totient is φ = 358040988.

The previous prime is 537061471. The next prime is 537061493. The reversal of 537061491 is 194160735.

537061491 is a `hidden beast` number, since 5 + 37 + 0 + 614 + 9 + 1 = 666.

It is not a de Polignac number, because 537061491 - 2¹³ = 537053299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537061493) 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 5 ways as a sum of consecutive naturals, for example, 29836741 + ... + 29836758.

Almost surely, 2^537061491 is an apocalyptic number.

537061491 is a deficient number, since it is larger than the sum of its proper divisors (238694009).

537061491 is a wasteful number, since it uses less digits than its factorization.

537061491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59673505 (or 59673502 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 537061491 is about 23174.5871807892. The cubic root of 537061491 is about 812.8454974349.

The spelling of 537061491 in words is "five hundred thirty-seven million, sixty-one thousand, four hundred ninety-one".