2493505537 has 4 divisors (see below), whose sum is σ = 2496782916. Its totient is φ = 2490228160.

The previous prime is 2493505529. The next prime is 2493505559. The reversal of 2493505537 is 7355053942.

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 1105496001 + 1388009536 = 33249^2 + 37256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2493505537 - 2³ = 2493505529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2493505493 and 2493505502.

It is not an unprimeable number, because it can be changed into a prime (2493505507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637548 + ... + 1639069.

It is an arithmetic number, because the mean of its divisors is an integer number (624195729).

Almost surely, 2^2493505537 is an apocalyptic number.

It is an amenable number.

2493505537 is a deficient number, since it is larger than the sum of its proper divisors (3277379).

2493505537 is an equidigital number, since it uses as much as digits as its factorization.

2493505537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277378.

The product of its (nonzero) digits is 567000, while the sum is 43.

The square root of 2493505537 is about 49935.0131370765. The cubic root of 2493505537 is about 1356.0325434958.

The spelling of 2493505537 in words is "two billion, four hundred ninety-three million, five hundred five thousand, five hundred thirty-seven".