1812056525 has 6 divisors (see below), whose sum is σ = 2246950122. Its totient is φ = 1449645200.

The previous prime is 1812056513. The next prime is 1812056539. The reversal of 1812056525 is 5256502181.

It can be written as a sum of positive squares in 3 ways, for example, as 192959881 + 1619096644 = 13891^2 + 40238^2 .

It is not a de Polignac number, because 1812056525 - 2⁶ = 1812056461 is a prime.

It is a Duffinian number.

It is a congruent 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, 36241106 + ... + 36241155.

It is an arithmetic number, because the mean of its divisors is an integer number (374491687).

Almost surely, 2^1812056525 is an apocalyptic number.

It is an amenable number.

1812056525 is a deficient number, since it is larger than the sum of its proper divisors (434893597).

1812056525 is an equidigital number, since it uses as much as digits as its factorization.

1812056525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72482271 (or 72482266 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 1812056525 is about 42568.2572464507. The cubic root of 1812056525 is about 1219.1502918299.

The spelling of 1812056525 in words is "one billion, eight hundred twelve million, fifty-six thousand, five hundred twenty-five".