81452055 has 8 divisors (see below), whose sum is σ = 130323312. Its totient is φ = 43441088.

The previous prime is 81452053. The next prime is 81452087. The reversal of 81452055 is 55025418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81452055 - 2¹ = 81452053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81452051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2715054 + ... + 2715083.

It is an arithmetic number, because the mean of its divisors is an integer number (16290414).

Almost surely, 2^81452055 is an apocalyptic number.

81452055 is a deficient number, since it is larger than the sum of its proper divisors (48871257).

81452055 is a wasteful number, since it uses less digits than its factorization.

81452055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430145.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 81452055 is about 9025.0792240290. The cubic root of 81452055 is about 433.4782871407.

The spelling of 81452055 in words is "eighty-one million, four hundred fifty-two thousand, fifty-five".