25213280852 has 6 divisors (see below), whose sum is σ = 44123241498. Its totient is φ = 12606640424.

The previous prime is 25213280849. The next prime is 25213280879. The reversal of 25213280852 is 25808231252.

It can be written as a sum of positive squares in only one way, i.e., 24801840196 + 411440656 = 157486^2 + 20284^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3151660103 + ... + 3151660110.

It is an arithmetic number, because the mean of its divisors is an integer number (7353873583).

Almost surely, 2^25213280852 is an apocalyptic number.

It is an amenable number.

25213280852 is a deficient number, since it is larger than the sum of its proper divisors (18909960646).

25213280852 is a wasteful number, since it uses less digits than its factorization.

25213280852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303320217 (or 6303320215 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 25213280852 in words is "twenty-five billion, two hundred thirteen million, two hundred eighty thousand, eight hundred fifty-two".