1825312545 has 48 divisors (see below), whose sum is σ = 3773083392. Its totient is φ = 798145920.

The previous prime is 1825312529. The next prime is 1825312571. The reversal of 1825312545 is 5452135281.

1825312545 is a `hidden beast` number, since 1 + 82 + 5 + 31 + 2 + 545 = 666.

It is not a de Polignac number, because 1825312545 - 2⁴ = 1825312529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118726 + ... + 133215.

It is an arithmetic number, because the mean of its divisors is an integer number (78605904).

Almost surely, 2^1825312545 is an apocalyptic number.

1825312545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1825312545 is an abundant number, since it is smaller than the sum of its proper divisors (1947770847).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1825312545 is a wasteful number, since it uses less digits than its factorization.

1825312545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251982 (or 251979 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 1825312545 is about 42723.6766325184. The cubic root of 1825312545 is about 1222.1159519800.

The spelling of 1825312545 in words is "one billion, eight hundred twenty-five million, three hundred twelve thousand, five hundred forty-five".