70523272 has 16 divisors (see below), whose sum is σ = 133468560. Its totient is φ = 34931664.

The previous prime is 70523263. The next prime is 70523279. The reversal of 70523272 is 27232507.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70523272.

It is not an unprimeable number, because it can be changed into a prime (70523279) 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, 40338 + ... + 42049.

It is an arithmetic number, because the mean of its divisors is an integer number (8341785).

Almost surely, 2^70523272 is an apocalyptic number.

It is an amenable number.

70523272 is a deficient number, since it is larger than the sum of its proper divisors (62945288).

70523272 is a wasteful number, since it uses less digits than its factorization.

70523272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82500 (or 82496 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 70523272 is about 8397.8135249599. The cubic root of 70523272 is about 413.1529117759.

Adding to 70523272 its reverse (27232507), we get a palindrome (97755779).

The spelling of 70523272 in words is "seventy million, five hundred twenty-three thousand, two hundred seventy-two".