72450475 has 12 divisors (see below), whose sum is σ = 90009864. Its totient is φ = 57849920.

The previous prime is 72450473. The next prime is 72450479. The reversal of 72450475 is 57405427.

It is not a de Polignac number, because 72450475 - 2¹ = 72450473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72450475.

It is not an unprimeable number, because it can be changed into a prime (72450473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12207 + ... + 17143.

It is an arithmetic number, because the mean of its divisors is an integer number (7500822).

Almost surely, 2^72450475 is an apocalyptic number.

72450475 is a deficient number, since it is larger than the sum of its proper divisors (17559389).

72450475 is a wasteful number, since it uses less digits than its factorization.

72450475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534 (or 5529 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 72450475 is about 8511.7844780046. The cubic root of 72450475 is about 416.8825778761.

The spelling of 72450475 in words is "seventy-two million, four hundred fifty thousand, four hundred seventy-five".