53511005 has 4 divisors (see below), whose sum is σ = 64213212. Its totient is φ = 42808800.

The previous prime is 53510993. The next prime is 53511023. The reversal of 53511005 is 50011535.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34727449 + 18783556 = 5893^2 + 4334^2 .

It is not a de Polignac number, because 53511005 - 2¹² = 53506909 is a prime.

It is a super-2 number, since 2×53511005² = 5726855312220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5351096 + ... + 5351105.

It is an arithmetic number, because the mean of its divisors is an integer number (16053303).

Almost surely, 2^53511005 is an apocalyptic number.

It is an amenable number.

53511005 is a deficient number, since it is larger than the sum of its proper divisors (10702207).

53511005 is a wasteful number, since it uses less digits than its factorization.

53511005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702206.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 53511005 is about 7315.1216667941. The cubic root of 53511005 is about 376.8319368541.

The spelling of 53511005 in words is "fifty-three million, five hundred eleven thousand, five".