25305252527 has 4 divisors (see below), whose sum is σ = 25432414800. Its totient is φ = 25178090256.

The previous prime is 25305252523. The next prime is 25305252541. The reversal of 25305252527 is 72525250352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25305252527 - 2² = 25305252523 is a prime.

It is a Duffinian number.

It is a congruent number.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63580838 + ... + 63581235.

It is an arithmetic number, because the mean of its divisors is an integer number (6358103700).

Almost surely, 2^25305252527 is an apocalyptic number.

25305252527 is a deficient number, since it is larger than the sum of its proper divisors (127162273).

25305252527 is a wasteful number, since it uses less digits than its factorization.

25305252527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127162272.

The product of its (nonzero) digits is 210000, while the sum is 38.

The spelling of 25305252527 in words is "twenty-five billion, three hundred five million, two hundred fifty-two thousand, five hundred twenty-seven".