25315030550 has 24 divisors (see below), whose sum is σ = 47090161632. Its totient is φ = 10125108000.

The previous prime is 25315030541. The next prime is 25315030553. The reversal of 25315030550 is 5503051352.

25315030550 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315030553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1009160 + ... + 1033940.

It is an arithmetic number, because the mean of its divisors is an integer number (1962090068).

Almost surely, 2^25315030550 is an apocalyptic number.

25315030550 is a deficient number, since it is larger than the sum of its proper divisors (21775131082).

25315030550 is a wasteful number, since it uses less digits than its factorization.

25315030550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45224 (or 45219 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The spelling of 25315030550 in words is "twenty-five billion, three hundred fifteen million, thirty thousand, five hundred fifty".