53818069 has 4 divisors (see below), whose sum is σ = 55069696. Its totient is φ = 52566444.

The previous prime is 53818067. The next prime is 53818081. The reversal of 53818069 is 96081835.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96081835 = 5 ⋅19216367.

It is a cyclic number.

It is not a de Polignac number, because 53818069 - 2¹ = 53818067 is a prime.

It is a super-2 number, since 2×53818069² = 5792769101777522, 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 (53818067) 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, 625749 + ... + 625834.

It is an arithmetic number, because the mean of its divisors is an integer number (13767424).

Almost surely, 2^53818069 is an apocalyptic number.

It is an amenable number.

53818069 is a deficient number, since it is larger than the sum of its proper divisors (1251627).

53818069 is a wasteful number, since it uses less digits than its factorization.

53818069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251626.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 53818069 is about 7336.0799477650. The cubic root of 53818069 is about 377.5513583035.

The spelling of 53818069 in words is "fifty-three million, eight hundred eighteen thousand, sixty-nine".