25430287527860 has 12 divisors (see below), whose sum is σ = 53403603808548. Its totient is φ = 10172115011136.

The previous prime is 25430287527839. The next prime is 25430287527907. The reversal of 25430287527860 is 6872578203452.

It can be written as a sum of positive squares in 2 ways, for example, as 7623187264144 + 17807100263716 = 2761012^2 + 4219846^2 .

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25430287527860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635757188177 + ... + 635757188216.

It is an arithmetic number, because the mean of its divisors is an integer number (4450300317379).

Almost surely, 2^{25430287527860} is an apocalyptic number.

25430287527860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25430287527860 is an abundant number, since it is smaller than the sum of its proper divisors (27973316280688).

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

25430287527860 is a wasteful number, since it uses less digits than its factorization.

25430287527860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271514376402 (or 1271514376400 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 59.

The spelling of 25430287527860 in words is "twenty-five trillion, four hundred thirty billion, two hundred eighty-seven million, five hundred twenty-seven thousand, eight hundred sixty".