72601250 has 30 divisors (see below), whose sum is σ = 136650789. Its totient is φ = 28920000.

The previous prime is 72601247. The next prime is 72601259. The reversal of 72601250 is 5210627.

It can be written as a sum of positive squares in 8 ways, for example, as 27889 + 72573361 = 167^2 + 8519^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6025.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72601259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 301130 + ... + 301370.

Almost surely, 2^72601250 is an apocalyptic number.

72601250 is a deficient number, since it is larger than the sum of its proper divisors (64049539).

72601250 is an frugal number, since it uses more digits than its factorization.

72601250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 72601250 is about 8520.6367132979. The cubic root of 72601250 is about 417.1715657153.

Adding to 72601250 its reverse (5210627), we get a palindrome (77811877).

The spelling of 72601250 in words is "seventy-two million, six hundred one thousand, two hundred fifty".