25278030305050 has 12 divisors (see below), whose sum is σ = 47017136367486. Its totient is φ = 10111212122000.

The previous prime is 25278030305009. The next prime is 25278030305107. The reversal of 25278030305050 is 5050303087252.

It can be written as a sum of positive squares in 3 ways, for example, as 23698290511921 + 1579739793129 = 4868089^2 + 1256877^2 .

It is a super-2 number, since 2×25278030305050² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25278030304994 and 25278030305012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252780303001 + ... + 252780303100.

Almost surely, 2^{25278030305050} is an apocalyptic number.

25278030305050 is a deficient number, since it is larger than the sum of its proper divisors (21739106062436).

25278030305050 is a wasteful number, since it uses less digits than its factorization.

25278030305050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505560606113 (or 505560606108 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 25278030305050 in words is "twenty-five trillion, two hundred seventy-eight billion, thirty million, three hundred five thousand, fifty".