3557974537 has 4 divisors (see below), whose sum is σ = 3831664900. Its totient is φ = 3284284176.

The previous prime is 3557974513. The next prime is 3557974543. The reversal of 3557974537 is 7354797553.

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 858548601 + 2699425936 = 29301^2 + 51956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3557974537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3557974577) 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 3 ways as a sum of consecutive naturals, for example, 136845162 + ... + 136845187.

It is an arithmetic number, because the mean of its divisors is an integer number (957916225).

Almost surely, 2^3557974537 is an apocalyptic number.

It is an amenable number.

3557974537 is a deficient number, since it is larger than the sum of its proper divisors (273690363).

3557974537 is a wasteful number, since it uses less digits than its factorization.

3557974537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273690362.

The product of its digits is 13891500, while the sum is 55.

The square root of 3557974537 is about 59648.7597272567. The cubic root of 3557974537 is about 1526.6317085862.

The spelling of 3557974537 in words is "three billion, five hundred fifty-seven million, nine hundred seventy-four thousand, five hundred thirty-seven".