2575401506 has 4 divisors (see below), whose sum is σ = 3863102262. Its totient is φ = 1287700752.

The previous prime is 2575401497. The next prime is 2575401523. The reversal of 2575401506 is 6051045752.

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

It can be written as a sum of positive squares in only one way, i.e., 1730976025 + 844425481 = 41605^2 + 29059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643850375 + ... + 643850378.

Almost surely, 2^2575401506 is an apocalyptic number.

2575401506 is a deficient number, since it is larger than the sum of its proper divisors (1287700756).

2575401506 is a wasteful number, since it uses less digits than its factorization.

2575401506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287700755.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 2575401506 is about 50748.4138274291. The cubic root of 2575401506 is about 1370.7186287873.

The spelling of 2575401506 in words is "two billion, five hundred seventy-five million, four hundred one thousand, five hundred six".