53512505 has 8 divisors (see below), whose sum is σ = 64305024. Its totient is φ = 42750000.

The previous prime is 53512441. The next prime is 53512523. The reversal of 53512505 is 50521535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53512505 - 2⁶ = 53512441 is a prime.

It is a super-3 number, since 3×53512505³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3371 + ... + 10880.

It is an arithmetic number, because the mean of its divisors is an integer number (8038128).

Almost surely, 2^53512505 is an apocalyptic number.

It is an amenable number.

53512505 is a deficient number, since it is larger than the sum of its proper divisors (10792519).

53512505 is a wasteful number, since it uses less digits than its factorization.

53512505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15007.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 53512505 is about 7315.2241934202. The cubic root of 53512505 is about 376.8354578907.

The spelling of 53512505 in words is "fifty-three million, five hundred twelve thousand, five hundred five".