81053324 has 24 divisors (see below), whose sum is σ = 157662288. Its totient is φ = 36146240.

The previous prime is 81053309. The next prime is 81053341. The reversal of 81053324 is 42335018.

It is a junction number, because it is equal to n+sod(n) for n = 81053293 and 81053302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15047 + ... + 19710.

It is an arithmetic number, because the mean of its divisors is an integer number (6569262).

Almost surely, 2^81053324 is an apocalyptic number.

It is an amenable number.

81053324 is a deficient number, since it is larger than the sum of its proper divisors (76608964).

81053324 is a wasteful number, since it uses less digits than its factorization.

81053324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34825 (or 34823 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 81053324 is about 9002.9619570450. The cubic root of 81053324 is about 432.7697965809.

The spelling of 81053324 in words is "eighty-one million, fifty-three thousand, three hundred twenty-four".