2525381633 has 4 divisors (see below), whose sum is σ = 2525556480. Its totient is φ = 2525206788.

The previous prime is 2525381627. The next prime is 2525381659. The reversal of 2525381633 is 3361835252.

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 not a de Polignac number, because 2525381633 - 2¹² = 2525377537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525381233) 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, 63593 + ... + 95366.

It is an arithmetic number, because the mean of its divisors is an integer number (631389120).

Almost surely, 2^2525381633 is an apocalyptic number.

It is an amenable number.

2525381633 is a deficient number, since it is larger than the sum of its proper divisors (174847).

2525381633 is a wasteful number, since it uses less digits than its factorization.

2525381633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174846.

The product of its digits is 129600, while the sum is 38.

The square root of 2525381633 is about 50253.1753524093. The cubic root of 2525381633 is about 1361.7864414822.

The spelling of 2525381633 in words is "two billion, five hundred twenty-five million, three hundred eighty-one thousand, six hundred thirty-three".