72520107 has 16 divisors (see below), whose sum is σ = 107730432. Its totient is φ = 43015520.

The previous prime is 72520087. The next prime is 72520109. The reversal of 72520107 is 70102527.

It is a cyclic number.

It is not a de Polignac number, because 72520107 - 2¹¹ = 72518059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72520109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21828 + ... + 24929.

It is an arithmetic number, because the mean of its divisors is an integer number (6733152).

Almost surely, 2^72520107 is an apocalyptic number.

72520107 is a deficient number, since it is larger than the sum of its proper divisors (35210325).

72520107 is a wasteful number, since it uses less digits than its factorization.

72520107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46818.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 72520107 is about 8515.8738248051. The cubic root of 72520107 is about 417.0160901037.

It can be divided in two parts, 72520 and 107, that added together give a palindrome (72627).

The spelling of 72520107 in words is "seventy-two million, five hundred twenty thousand, one hundred seven".