52221057 has 8 divisors (see below), whose sum is σ = 79574976. Its totient is φ = 29840592.

The previous prime is 52221053. The next prime is 52221079. The reversal of 52221057 is 75012225.

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

It is not a de Polignac number, because 52221057 - 2² = 52221053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52221053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243338 + ... + 1243379.

It is an arithmetic number, because the mean of its divisors is an integer number (9946872).

Almost surely, 2^52221057 is an apocalyptic number.

It is an amenable number.

52221057 is a deficient number, since it is larger than the sum of its proper divisors (27353919).

52221057 is a wasteful number, since it uses less digits than its factorization.

52221057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486727.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 52221057 is about 7226.4138409034. The cubic root of 52221057 is about 373.7792767602.

The spelling of 52221057 in words is "fifty-two million, two hundred twenty-one thousand, fifty-seven".