72452570 has 8 divisors (see below), whose sum is σ = 130414644. Its totient is φ = 28981024.

The previous prime is 72452561. The next prime is 72452579. The reversal of 72452570 is 7525427.

It is an interprime number because it is at equal distance from previous prime (72452561) and next prime (72452579).

It can be written as a sum of positive squares in 2 ways, for example, as 72369049 + 83521 = 8507^2 + 289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72452579) 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, 3622619 + ... + 3622638.

Almost surely, 2^72452570 is an apocalyptic number.

72452570 is a deficient number, since it is larger than the sum of its proper divisors (57962074).

72452570 is a wasteful number, since it uses less digits than its factorization.

72452570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245264.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 72452570 is about 8511.9075417911. The cubic root of 72452570 is about 416.8865960719.

Adding to 72452570 its reverse (7525427), we get a palindrome (79977997).

The spelling of 72452570 in words is "seventy-two million, four hundred fifty-two thousand, five hundred seventy".