52640419 has 8 divisors (see below), whose sum is σ = 56855232. Its totient is φ = 48449280.

The previous prime is 52640417. The next prime is 52640437. The reversal of 52640419 is 91404625.

52640419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52640419 - 2¹ = 52640417 is a prime.

It is a super-2 number, since 2×52640419² = 5542027424991122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52640417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147 + ... + 10324.

It is an arithmetic number, because the mean of its divisors is an integer number (7106904).

Almost surely, 2^52640419 is an apocalyptic number.

52640419 is the 4589-th heptagonal number.

52640419 is a deficient number, since it is larger than the sum of its proper divisors (4214813).

52640419 is a wasteful number, since it uses less digits than its factorization.

52640419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11837.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52640419 is about 7255.3717341016. The cubic root of 52640419 is about 374.7771570838. Note that the first 3 decimals are identical.

The spelling of 52640419 in words is "fifty-two million, six hundred forty thousand, four hundred nineteen".