72455 has 8 divisors (see below), whose sum is σ = 89232. Its totient is φ = 56448.

The previous prime is 72431. The next prime is 72461. The reversal of 72455 is 55427.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72455 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72455.

It is a congruent number.

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, 47 + ... + 383.

It is an arithmetic number, because the mean of its divisors is an integer number (11154).

2⁷²⁴⁵⁵ is an apocalyptic number.

72455 is a deficient number, since it is larger than the sum of its proper divisors (16777).

72455 is a wasteful number, since it uses less digits than its factorization.

72455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385.

The product of its digits is 1400, while the sum is 23.

The square root of 72455 is about 269.1746644839. The cubic root of 72455 is about 41.6891256698.

The spelling of 72455 in words is "seventy-two thousand, four hundred fifty-five".