10213812025 has 6 divisors (see below), whose sum is σ = 12665126942. Its totient is φ = 8171049600.

The previous prime is 10213812019. The next prime is 10213812031. The reversal of 10213812025 is 52021831201.

It is an interprime number because it is at equal distance from previous prime (10213812019) and next prime (10213812031).

It can be written as a sum of positive squares in 3 ways, for example, as 53978409 + 10159833616 = 7347^2 + 100796^2 .

It is not a de Polignac number, because 10213812025 - 2⁷ = 10213811897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 408552481 = 10213812025 / (1 + 0 + 2 + 1 + 3 + 8 + 1 + 2 + 0 + 2 + 5).

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, 204276216 + ... + 204276265.

Almost surely, 2^10213812025 is an apocalyptic number.

It is an amenable number.

10213812025 is a deficient number, since it is larger than the sum of its proper divisors (2451314917).

10213812025 is an equidigital number, since it uses as much as digits as its factorization.

10213812025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408552491 (or 408552486 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 10213812025 in words is "ten billion, two hundred thirteen million, eight hundred twelve thousand, twenty-five".