72522007 has 4 divisors (see below), whose sum is σ = 72604656. Its totient is φ = 72439360.

The previous prime is 72521971. The next prime is 72522049. The reversal of 72522007 is 70022527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70022527 = 47 ⋅1489841.

It is a cyclic number.

It is not a de Polignac number, because 72522007 - 2¹⁵ = 72489239 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 (72522067) 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, 39994 + ... + 41767.

It is an arithmetic number, because the mean of its divisors is an integer number (18151164).

Almost surely, 2^72522007 is an apocalyptic number.

72522007 is a deficient number, since it is larger than the sum of its proper divisors (82649).

72522007 is an equidigital number, since it uses as much as digits as its factorization.

72522007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82648.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 72522007 is about 8515.9853804478. The cubic root of 72522007 is about 417.0197319610.

The spelling of 72522007 in words is "seventy-two million, five hundred twenty-two thousand, seven".