25602242403 has 16 divisors (see below), whose sum is σ = 36148654080. Its totient is φ = 16062235776.

The previous prime is 25602242399. The next prime is 25602242429. The reversal of 25602242403 is 30424220652.

It is not a de Polignac number, because 25602242403 - 2² = 25602242399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25602242803) 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 15 ways as a sum of consecutive naturals, for example, 489126 + ... + 538932.

It is an arithmetic number, because the mean of its divisors is an integer number (2259290880).

Almost surely, 2^25602242403 is an apocalyptic number.

25602242403 is a deficient number, since it is larger than the sum of its proper divisors (10546411677).

25602242403 is a wasteful number, since it uses less digits than its factorization.

25602242403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59906.

The product of its (nonzero) digits is 23040, while the sum is 30.

The spelling of 25602242403 in words is "twenty-five billion, six hundred two million, two hundred forty-two thousand, four hundred three".