25255305530 has 64 divisors (see below), whose sum is σ = 56504383488. Its totient is φ = 7913721600.

The previous prime is 25255305521. The next prime is 25255305557. The reversal of 25255305530 is 3550355252.

25255305530 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 45482 + ... + 229301.

It is an arithmetic number, because the mean of its divisors is an integer number (882880992).

Almost surely, 2^25255305530 is an apocalyptic number.

25255305530 is an abundant number, since it is smaller than the sum of its proper divisors (31249077958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25255305530 is a wasteful number, since it uses less digits than its factorization.

25255305530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274911.

The product of its (nonzero) digits is 112500, while the sum is 35.

The spelling of 25255305530 in words is "twenty-five billion, two hundred fifty-five million, three hundred five thousand, five hundred thirty".