72956455 has 48 divisors (see below), whose sum is σ = 106251264. Its totient is φ = 47648640.

The previous prime is 72956453. The next prime is 72956459. The reversal of 72956455 is 55465927.

It is not a de Polignac number, because 72956455 - 2¹ = 72956453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72956453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 436782 + ... + 436948.

It is an arithmetic number, because the mean of its divisors is an integer number (2213568).

Almost surely, 2^72956455 is an apocalyptic number.

72956455 is a deficient number, since it is larger than the sum of its proper divisors (33294809).

72956455 is a wasteful number, since it uses less digits than its factorization.

72956455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 243 counting only the distinct ones).

The product of its digits is 378000, while the sum is 43.

The square root of 72956455 is about 8541.4550868104. The cubic root of 72956455 is about 417.8508029608.

The spelling of 72956455 in words is "seventy-two million, nine hundred fifty-six thousand, four hundred fifty-five".