52021057 has 8 divisors (see below), whose sum is σ = 57958272. Its totient is φ = 46285200.

The previous prime is 52021051. The next prime is 52021063. The reversal of 52021057 is 75012025.

It is an interprime number because it is at equal distance from previous prime (52021051) and next prime (52021063).

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 52021057 - 2³ = 52021049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52021051) 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, 49794 + ... + 50827.

It is an arithmetic number, because the mean of its divisors is an integer number (7244784).

Almost surely, 2^52021057 is an apocalyptic number.

It is an amenable number.

52021057 is a deficient number, since it is larger than the sum of its proper divisors (5937215).

52021057 is a wasteful number, since it uses less digits than its factorization.

52021057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100679.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 52021057 is about 7212.5624434039. The cubic root of 52021057 is about 373.3014906054.

The spelling of 52021057 in words is "fifty-two million, twenty-one thousand, fifty-seven".