537649272 has 128 divisors (see below), whose sum is σ = 1535385600. Its totient is φ = 174265344.

The previous prime is 537649271. The next prime is 537649291. The reversal of 537649272 is 272946735.

537649272 is a `hidden beast` number, since 5 + 376 + 4 + 9 + 272 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537649271) 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 31 ways as a sum of consecutive naturals, for example, 1403593 + ... + 1403975.

It is an arithmetic number, because the mean of its divisors is an integer number (11995200).

Almost surely, 2^537649272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537649272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767692800).

537649272 is an abundant number, since it is smaller than the sum of its proper divisors (997736328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

537649272 is a wasteful number, since it uses less digits than its factorization.

537649272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 552 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 537649272 is about 23187.2652980036. The cubic root of 537649272 is about 813.1419259040.

It can be divided in two parts, 53764 and 9272, that added together give a palindrome (63036).

The spelling of 537649272 in words is "five hundred thirty-seven million, six hundred forty-nine thousand, two hundred seventy-two".