2575961399 has 16 divisors (see below), whose sum is σ = 2903792640. Its totient is φ = 2263896000.

The previous prime is 2575961387. The next prime is 2575961413. The reversal of 2575961399 is 9931695752.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2575961399 - 2¹² = 2575957303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2575961369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381644 + ... + 388334.

It is an arithmetic number, because the mean of its divisors is an integer number (181487040).

Almost surely, 2^2575961399 is an apocalyptic number.

2575961399 is a deficient number, since it is larger than the sum of its proper divisors (327831241).

2575961399 is a wasteful number, since it uses less digits than its factorization.

2575961399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862.

The product of its digits is 4592700, while the sum is 56.

The square root of 2575961399 is about 50753.9298872511. The cubic root of 2575961399 is about 1370.8179531263.

The spelling of 2575961399 in words is "two billion, five hundred seventy-five million, nine hundred sixty-one thousand, three hundred ninety-nine".