72206526 has 16 divisors (see below), whose sum is σ = 165043584. Its totient is φ = 20630424.

The previous prime is 72206513. The next prime is 72206527. The reversal of 72206526 is 62560227.

It is a junction number, because it is equal to n+sod(n) for n = 72206493 and 72206502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72206527) 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, 859560 + ... + 859643.

It is an arithmetic number, because the mean of its divisors is an integer number (10315224).

Almost surely, 2^72206526 is an apocalyptic number.

72206526 is an abundant number, since it is smaller than the sum of its proper divisors (92837058).

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

72206526 is a wasteful number, since it uses less digits than its factorization.

72206526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719215.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 72206526 is about 8497.4423210752. The cubic root of 72206526 is about 416.4141546992.

The spelling of 72206526 in words is "seventy-two million, two hundred six thousand, five hundred twenty-six".