72537258 has 16 divisors (see below), whose sum is σ = 145336320. Its totient is φ = 24135456.

The previous prime is 72537251. The next prime is 72537271. The reversal of 72537258 is 85273527.

It is not an unprimeable number, because it can be changed into a prime (72537251) 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, 7210 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (9083520).

Almost surely, 2^72537258 is an apocalyptic number.

72537258 is an abundant number, since it is smaller than the sum of its proper divisors (72799062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72537258 is a wasteful number, since it uses less digits than its factorization.

72537258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21821.

The product of its digits is 117600, while the sum is 39.

The square root of 72537258 is about 8516.8807670414. The cubic root of 72537258 is about 417.0489622707.

The spelling of 72537258 in words is "seventy-two million, five hundred thirty-seven thousand, two hundred fifty-eight".