25005755803 has 24 divisors (see below), whose sum is σ = 30286436544. Its totient is φ = 20567836800.

The previous prime is 25005755791. The next prime is 25005755813. The reversal of 25005755803 is 30855750052.

It is a happy number.

It is not a de Polignac number, because 25005755803 - 2²¹ = 25003658651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25005755813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20526 + ... + 224572.

It is an arithmetic number, because the mean of its divisors is an integer number (1261934856).

Almost surely, 2^25005755803 is an apocalyptic number.

25005755803 is a deficient number, since it is larger than the sum of its proper divisors (5280680741).

25005755803 is a wasteful number, since it uses less digits than its factorization.

25005755803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204163 (or 204156 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 25005755803 in words is "twenty-five billion, five million, seven hundred fifty-five thousand, eight hundred three".