7200057 has 4 divisors (see below), whose sum is σ = 9600080. Its totient is φ = 4800036.

The previous prime is 7200047. The next prime is 7200059. The reversal of 7200057 is 7500027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7500027 = 3 ⋅2500009.

It is not a de Polignac number, because 7200057 - 2¹⁵ = 7167289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7200059) 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, 1200007 + ... + 1200012.

It is an arithmetic number, because the mean of its divisors is an integer number (2400020).

Almost surely, 2^7200057 is an apocalyptic number.

It is an amenable number.

7200057 is a deficient number, since it is larger than the sum of its proper divisors (2400023).

7200057 is a wasteful number, since it uses less digits than its factorization.

7200057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400022.

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 7200057 is about 2683.2921943016. The cubic root of 7200057 is about 193.0983864836.

The spelling of 7200057 in words is "seven million, two hundred thousand, fifty-seven".