57220067 has 8 divisors (see below), whose sum is σ = 59799840. Its totient is φ = 54648000.

The previous prime is 57220049. The next prime is 57220081. The reversal of 57220067 is 76002275.

It is a happy number.

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

It is not a de Polignac number, because 57220067 - 2⁶ = 57220003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57220027) 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, 17567 + ... + 20567.

It is an arithmetic number, because the mean of its divisors is an integer number (7474980).

Almost surely, 2^57220067 is an apocalyptic number.

57220067 is a deficient number, since it is larger than the sum of its proper divisors (2579773).

57220067 is a wasteful number, since it uses less digits than its factorization.

57220067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 57220067 is about 7564.3946882748. The cubic root of 57220067 is about 385.3447566852.

The spelling of 57220067 in words is "fifty-seven million, two hundred twenty thousand, sixty-seven".