72462505 has 4 divisors (see below), whose sum is σ = 86955012. Its totient is φ = 57970000.

The previous prime is 72462499. The next prime is 72462553. The reversal of 72462505 is 50526427.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46949904 + 25512601 = 6852^2 + 5051^2 .

It is not a de Polignac number, because 72462505 - 2⁵ = 72462473 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7246246 + ... + 7246255.

It is an arithmetic number, because the mean of its divisors is an integer number (21738753).

Almost surely, 2^72462505 is an apocalyptic number.

It is an amenable number.

72462505 is a deficient number, since it is larger than the sum of its proper divisors (14492507).

72462505 is a wasteful number, since it uses less digits than its factorization.

72462505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14492506.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 72462505 is about 8512.4911160012. The cubic root of 72462505 is about 416.9056502800.

The spelling of 72462505 in words is "seventy-two million, four hundred sixty-two thousand, five hundred five".