4537940557 has 4 divisors (see below), whose sum is σ = 4648622076. Its totient is φ = 4427259040.

The previous prime is 4537940531. The next prime is 4537940581. The reversal of 4537940557 is 7550497354.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1814248836 + 2723691721 = 42594^2 + 52189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4537940557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4537940557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4537940587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55340698 + ... + 55340779.

It is an arithmetic number, because the mean of its divisors is an integer number (1162155519).

Almost surely, 2^4537940557 is an apocalyptic number.

It is an amenable number.

4537940557 is a deficient number, since it is larger than the sum of its proper divisors (110681519).

4537940557 is a wasteful number, since it uses less digits than its factorization.

4537940557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110681518.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The square root of 4537940557 is about 67364.2379679307. The cubic root of 4537940557 is about 1655.5905325625.

The spelling of 4537940557 in words is "four billion, five hundred thirty-seven million, nine hundred forty thousand, five hundred fifty-seven".