2537487457 has 4 divisors (see below), whose sum is σ = 2537841940. Its totient is φ = 2537132976.

The previous prime is 2537487451. The next prime is 2537487461. The reversal of 2537487457 is 7547847352.

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 1416844881 + 1120642576 = 37641^2 + 33476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2537487457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2537487451) 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, 166278 + ... + 180895.

It is an arithmetic number, because the mean of its divisors is an integer number (634460485).

Almost surely, 2^2537487457 is an apocalyptic number.

It is an amenable number.

2537487457 is a deficient number, since it is larger than the sum of its proper divisors (354483).

2537487457 is an equidigital number, since it uses as much as digits as its factorization.

2537487457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354482.

The product of its digits is 6585600, while the sum is 52.

The square root of 2537487457 is about 50373.4796991433. The cubic root of 2537487457 is about 1363.9589546920.

The spelling of 2537487457 in words is "two billion, five hundred thirty-seven million, four hundred eighty-seven thousand, four hundred fifty-seven".