52920619 has 4 divisors (see below), whose sum is σ = 54350944. Its totient is φ = 51490296.

The previous prime is 52920617. The next prime is 52920629. The reversal of 52920619 is 91602925.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52920619 - 2¹ = 52920617 is a prime.

It is a super-2 number, since 2×52920619² = 5601183830686322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52920613) 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, 715107 + ... + 715180.

It is an arithmetic number, because the mean of its divisors is an integer number (13587736).

Almost surely, 2^52920619 is an apocalyptic number.

52920619 is a deficient number, since it is larger than the sum of its proper divisors (1430325).

52920619 is a wasteful number, since it uses less digits than its factorization.

52920619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430324.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 52920619 is about 7274.6559368811. The cubic root of 52920619 is about 375.4409485610.

The spelling of 52920619 in words is "fifty-two million, nine hundred twenty thousand, six hundred nineteen".