2537075521 has 4 divisors (see below), whose sum is σ = 2539537344. Its totient is φ = 2534613700.

The previous prime is 2537075479. The next prime is 2537075537. The reversal of 2537075521 is 1255707352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2537075521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2537075561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229365 + ... + 1231426.

It is an arithmetic number, because the mean of its divisors is an integer number (634884336).

Almost surely, 2^2537075521 is an apocalyptic number.

It is an amenable number.

2537075521 is a deficient number, since it is larger than the sum of its proper divisors (2461823).

2537075521 is a wasteful number, since it uses less digits than its factorization.

2537075521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461822.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 2537075521 is about 50369.3907149967. The cubic root of 2537075521 is about 1363.8851422808.

The spelling of 2537075521 in words is "two billion, five hundred thirty-seven million, seventy-five thousand, five hundred twenty-one".