72750527 has 4 divisors (see below), whose sum is σ = 73007880. Its totient is φ = 72493176.

The previous prime is 72750511. The next prime is 72750533. The reversal of 72750527 is 72505727.

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

It is a cyclic number.

It is not a de Polignac number, because 72750527 - 2⁴ = 72750511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72750427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128252 + ... + 128817.

It is an arithmetic number, because the mean of its divisors is an integer number (18251970).

Almost surely, 2^72750527 is an apocalyptic number.

72750527 is a deficient number, since it is larger than the sum of its proper divisors (257353).

72750527 is a wasteful number, since it uses less digits than its factorization.

72750527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257352.

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 72750527 is about 8529.3919478472. The cubic root of 72750527 is about 417.4572884701.

The spelling of 72750527 in words is "seventy-two million, seven hundred fifty thousand, five hundred twenty-seven".