53870069 has 4 divisors (see below), whose sum is σ = 58767360. Its totient is φ = 48972780.

The previous prime is 53870057. The next prime is 53870083. The reversal of 53870069 is 96007835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53870069 - 2⁴ = 53870053 is a prime.

It is a super-2 number, since 2×53870069² = 5803968668129522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53170069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2448629 + ... + 2448650.

It is an arithmetic number, because the mean of its divisors is an integer number (14691840).

Almost surely, 2^53870069 is an apocalyptic number.

It is an amenable number.

53870069 is a deficient number, since it is larger than the sum of its proper divisors (4897291).

53870069 is a wasteful number, since it uses less digits than its factorization.

53870069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897290.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 53870069 is about 7339.6232192123. The cubic root of 53870069 is about 377.6729181639.

It can be divided in two parts, 538 and 70069, that added together give a palindrome (70607).

The spelling of 53870069 in words is "fifty-three million, eight hundred seventy thousand, sixty-nine".