81055295 has 4 divisors (see below), whose sum is σ = 97266360. Its totient is φ = 64844232.

The previous prime is 81055279. The next prime is 81055309. The reversal of 81055295 is 59255018.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59255018 = 2 ⋅29627509.

It is a cyclic number.

It is not a de Polignac number, because 81055295 - 2⁴ = 81055279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8105525 + ... + 8105534.

It is an arithmetic number, because the mean of its divisors is an integer number (24316590).

Almost surely, 2^81055295 is an apocalyptic number.

81055295 is a deficient number, since it is larger than the sum of its proper divisors (16211065).

81055295 is a wasteful number, since it uses less digits than its factorization.

81055295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16211064.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 81055295 is about 9003.0714203543. The cubic root of 81055295 is about 432.7733044871.

The spelling of 81055295 in words is "eighty-one million, fifty-five thousand, two hundred ninety-five".