25305252524 has 48 divisors (see below), whose sum is σ = 47386684800. Its totient is φ = 11789784576.

The previous prime is 25305252523. The next prime is 25305252541. The reversal of 25305252524 is 42525250352.

It is not an unprimeable number, because it can be changed into a prime (25305252523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191107 + ... + 1212165.

It is an arithmetic number, because the mean of its divisors is an integer number (987222600).

Almost surely, 2^25305252524 is an apocalyptic number.

It is an amenable number.

25305252524 is a deficient number, since it is larger than the sum of its proper divisors (22081432276).

25305252524 is a wasteful number, since it uses less digits than its factorization.

25305252524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342 (or 21340 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

The spelling of 25305252524 in words is "twenty-five billion, three hundred five million, two hundred fifty-two thousand, five hundred twenty-four".