537785631 has 12 divisors (see below), whose sum is σ = 781143480. Its totient is φ = 356519760.

The previous prime is 537785623. The next prime is 537785653. The reversal of 537785631 is 136587735.

537785631 is a `hidden beast` number, since 5 + 3 + 7 + 7 + 8 + 5 + 631 = 666.

537785631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 537785631 - 2³ = 537785623 is a prime.

It is a super-2 number, since 2×537785631² = 578426769820136322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537781631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165300 + ... + 168521.

It is an arithmetic number, because the mean of its divisors is an integer number (65095290).

Almost surely, 2^537785631 is an apocalyptic number.

537785631 is a deficient number, since it is larger than the sum of its proper divisors (243357849).

537785631 is a wasteful number, since it uses less digits than its factorization.

537785631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334006 (or 334003 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 537785631 is about 23190.2054971490. The cubic root of 537785631 is about 813.2106633091.

The spelling of 537785631 in words is "five hundred thirty-seven million, seven hundred eighty-five thousand, six hundred thirty-one".