181525838052 has 24 divisors (see below), whose sum is σ = 456141849856. Its totient is φ = 55854103968.

The previous prime is 181525838027. The next prime is 181525838099. The reversal of 181525838052 is 250838525181.

It is a junction number, because it is equal to n+sod(n) for n = 181525837992 and 181525838010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581813428 + ... + 581813739.

Almost surely, 2^181525838052 is an apocalyptic number.

181525838052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

181525838052 is an abundant number, since it is smaller than the sum of its proper divisors (274616011804).

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

181525838052 is a wasteful number, since it uses less digits than its factorization.

181525838052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163627187 (or 1163627185 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 48.

The spelling of 181525838052 in words is "one hundred eighty-one billion, five hundred twenty-five million, eight hundred thirty-eight thousand, fifty-two".