72053236 has 12 divisors (see below), whose sum is σ = 129168900. Its totient is φ = 35147840.

The previous prime is 72053221. The next prime is 72053237. The reversal of 72053236 is 63235027.

It can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 70660836 = 1180^2 + 8406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72053237) 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, 219511 + ... + 219838.

It is an arithmetic number, because the mean of its divisors is an integer number (10764075).

Almost surely, 2^72053236 is an apocalyptic number.

It is an amenable number.

72053236 is a deficient number, since it is larger than the sum of its proper divisors (57115664).

72053236 is a wasteful number, since it uses less digits than its factorization.

72053236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439394 (or 439392 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 72053236 is about 8488.4177559778. The cubic root of 72053236 is about 416.1192720747.

It can be divided in two parts, 720 and 53236, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 72053236 in words is "seventy-two million, fifty-three thousand, two hundred thirty-six".