28610031025 has 9 divisors (see below), whose sum is σ = 35477487201. Its totient is φ = 22887348240.

The previous prime is 28610030971. The next prime is 28610031049. The reversal of 28610031025 is 52013001682.

The square root of 28610031025 is 169145.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 246081969 + 28363949056 = 15687^2 + 168416^2 .

It is not a de Polignac number, because 28610031025 - 2¹⁵ = 28609998257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28610030984 and 28610031002.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 828811 + ... + 862639.

Almost surely, 2^28610031025 is an apocalyptic number.

28610031025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28610031025 is the 169145-th square number.

28610031025 is the 84573-rd centered octagonal number.

It is an amenable number.

28610031025 is a deficient number, since it is larger than the sum of its proper divisors (6867456176).

28610031025 is an frugal number, since it uses more digits than its factorization.

28610031025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67668 (or 33834 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

It can be divided in two parts, 2861003 and 1025, that added together give a triangular number (2862028 = T₂₃₉₂).

The spelling of 28610031025 in words is "twenty-eight billion, six hundred ten million, thirty-one thousand, twenty-five".