72505358 has 4 divisors (see below), whose sum is σ = 108758040. Its totient is φ = 36252678.

The previous prime is 72505351. The next prime is 72505369. The reversal of 72505358 is 85350527.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72505351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18126338 + ... + 18126341.

It is an arithmetic number, because the mean of its divisors is an integer number (27189510).

Almost surely, 2^72505358 is an apocalyptic number.

72505358 is a deficient number, since it is larger than the sum of its proper divisors (36252682).

72505358 is a wasteful number, since it uses less digits than its factorization.

72505358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36252681.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 72505358 is about 8515.0078097439. The cubic root of 72505358 is about 416.9878175433.

The spelling of 72505358 in words is "seventy-two million, five hundred five thousand, three hundred fifty-eight".