25000278055252 has 6 divisors (see below), whose sum is σ = 43750486596698. Its totient is φ = 12500139027624.

The previous prime is 25000278055189. The next prime is 25000278055253. The reversal of 25000278055252 is 25255087200052.

It can be written as a sum of positive squares in only one way, i.e., 24868214134416 + 132063920836 = 4986804^2 + 363406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25000278055199 and 25000278055208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000278055253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125034756903 + ... + 3125034756910.

Almost surely, 2^{25000278055252} is an apocalyptic number.

It is an amenable number.

25000278055252 is a deficient number, since it is larger than the sum of its proper divisors (18750208541446).

25000278055252 is a wasteful number, since it uses less digits than its factorization.

25000278055252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250069513817 (or 6250069513815 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 25000278055252 in words is "twenty-five trillion, two hundred seventy-eight million, fifty-five thousand, two hundred fifty-two".