72366355 has 4 divisors (see below), whose sum is σ = 86839632. Its totient is φ = 57893080.

The previous prime is 72366337. The next prime is 72366373. The reversal of 72366355 is 55366327.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55366327 = 43 ⋅1287589.

It is an interprime number because it is at equal distance from previous prime (72366337) and next prime (72366373).

It is not a de Polignac number, because 72366355 - 2⁷ = 72366227 is a prime.

It is a Duffinian 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, 7236631 + ... + 7236640.

It is an arithmetic number, because the mean of its divisors is an integer number (21709908).

Almost surely, 2^72366355 is an apocalyptic number.

72366355 is a deficient number, since it is larger than the sum of its proper divisors (14473277).

72366355 is a wasteful number, since it uses less digits than its factorization.

72366355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14473276.

The product of its digits is 113400, while the sum is 37.

The square root of 72366355 is about 8506.8416583360. The cubic root of 72366355 is about 416.7211722474.

The spelling of 72366355 in words is "seventy-two million, three hundred sixty-six thousand, three hundred fifty-five".