280025053025 has 12 divisors (see below), whose sum is σ = 349238187132. Its totient is φ = 222725125440.

The previous prime is 280025053003. The next prime is 280025053057. The reversal of 280025053025 is 520350520082.

It can be written as a sum of positive squares in 6 ways, for example, as 20486769424 + 259538283601 = 143132^2 + 509449^2 .

It is not a de Polignac number, because 280025053025 - 2¹² = 280025048929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280025052982 and 280025053000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32368514 + ... + 32377163.

It is an arithmetic number, because the mean of its divisors is an integer number (29103182261).

Almost surely, 2^280025053025 is an apocalyptic number.

280025053025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

280025053025 is a deficient number, since it is larger than the sum of its proper divisors (69213134107).

280025053025 is a wasteful number, since it uses less digits than its factorization.

280025053025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64745860 (or 64745855 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 280025053025 in words is "two hundred eighty billion, twenty-five million, fifty-three thousand, twenty-five".