57220005 has 8 divisors (see below), whose sum is σ = 91552032. Its totient is φ = 30517328.

The previous prime is 57220003. The next prime is 57220027. The reversal of 57220005 is 50002275.

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

It is a cyclic number.

It is not a de Polignac number, because 57220005 - 2¹ = 57220003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57220003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907319 + ... + 1907348.

It is an arithmetic number, because the mean of its divisors is an integer number (11444004).

Almost surely, 2^57220005 is an apocalyptic number.

It is an amenable number.

57220005 is a deficient number, since it is larger than the sum of its proper divisors (34332027).

57220005 is a wasteful number, since it uses less digits than its factorization.

57220005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814675.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 57220005 is about 7564.3905901269. The cubic root of 57220005 is about 385.3446175068.

The spelling of 57220005 in words is "fifty-seven million, two hundred twenty thousand, five".