28037011025 has 6 divisors (see below), whose sum is σ = 34765893702. Its totient is φ = 22429608800.

The previous prime is 28037010977. The next prime is 28037011049. The reversal of 28037011025 is 52011073082.

It can be written as a sum of positive squares in 3 ways, for example, as 52070656 + 27984940369 = 7216^2 + 167287^2 .

It is not a de Polignac number, because 28037011025 - 2⁸ = 28037010769 is a prime.

It is a Duffinian number.

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, 560740196 + ... + 560740245.

It is an arithmetic number, because the mean of its divisors is an integer number (5794315617).

Almost surely, 2^28037011025 is an apocalyptic number.

28037011025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28037011025 is a deficient number, since it is larger than the sum of its proper divisors (6728882677).

28037011025 is a wasteful number, since it uses less digits than its factorization.

28037011025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121480451 (or 1121480446 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 28037011025 in words is "twenty-eight billion, thirty-seven million, eleven thousand, twenty-five".