72450057 has 8 divisors (see below), whose sum is σ = 96642976. Its totient is φ = 48278592.

The previous prime is 72450047. The next prime is 72450101. The reversal of 72450057 is 75005427.

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

It is not a de Polignac number, because 72450057 - 2⁴ = 72450041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72450017) 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 7 ways as a sum of consecutive naturals, for example, 5898 + ... + 13404.

It is an arithmetic number, because the mean of its divisors is an integer number (12080372).

Almost surely, 2^72450057 is an apocalyptic number.

It is an amenable number.

72450057 is a deficient number, since it is larger than the sum of its proper divisors (24192919).

72450057 is a wasteful number, since it uses less digits than its factorization.

72450057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10727.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 72450057 is about 8511.7599237760. The cubic root of 72450057 is about 416.8817761457.

The spelling of 72450057 in words is "seventy-two million, four hundred fifty thousand, fifty-seven".