72450053 has 12 divisors (see below), whose sum is σ = 79417548. Its totient is φ = 65702400.

The previous prime is 72450047. The next prime is 72450101. The reversal of 72450053 is 35005427.

It can be written as a sum of positive squares in 2 ways, for example, as 48469444 + 23980609 = 6962^2 + 4897^2 .

It is not a de Polignac number, because 72450053 - 2⁶ = 72449989 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72450043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44453 + ... + 46053.

It is an arithmetic number, because the mean of its divisors is an integer number (6618129).

Almost surely, 2^72450053 is an apocalyptic number.

It is an amenable number.

72450053 is a deficient number, since it is larger than the sum of its proper divisors (6967495).

72450053 is a wasteful number, since it uses less digits than its factorization.

72450053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 72450053 is about 8511.7596888070. The cubic root of 72450053 is about 416.8817684736.

The spelling of 72450053 in words is "seventy-two million, four hundred fifty thousand, fifty-three".