537657632 has 18 divisors (see below), whose sum is σ = 1058771763. Its totient is φ = 268763232.

The previous prime is 537657613. The next prime is 537657689. The reversal of 537657632 is 236756735.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 268828816 + 268828816 = 16396^2 + 16396^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16396.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 129119 + ... + 133217.

Almost surely, 2^537657632 is an apocalyptic number.

It is an amenable number.

537657632 is a deficient number, since it is larger than the sum of its proper divisors (521114131).

537657632 is an frugal number, since it uses more digits than its factorization.

537657632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8208 (or 4101 counting only the distinct ones).

The product of its digits is 793800, while the sum is 44.

The square root of 537657632 is about 23187.4455686693. The cubic root of 537657632 is about 813.1461404428.

Multiplying 537657632 by its product of digits (793800), we get a square (426792628281600 = 20658960²).

The spelling of 537657632 in words is "five hundred thirty-seven million, six hundred fifty-seven thousand, six hundred thirty-two".