25105535530 has 32 divisors (see below), whose sum is σ = 45590688000. Its totient is φ = 9953551872.

The previous prime is 25105535513. The next prime is 25105535537. The reversal of 25105535530 is 3553550152.

It is not an unprimeable number, because it can be changed into a prime (25105535537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499386 + ... + 547354.

It is an arithmetic number, because the mean of its divisors is an integer number (1424709000).

Almost surely, 2^25105535530 is an apocalyptic number.

25105535530 is a deficient number, since it is larger than the sum of its proper divisors (20485152470).

25105535530 is a wasteful number, since it uses less digits than its factorization.

25105535530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48438.

The product of its (nonzero) digits is 56250, while the sum is 34.

The spelling of 25105535530 in words is "twenty-five billion, one hundred five million, five hundred thirty-five thousand, five hundred thirty".