53503505 has 16 divisors (see below), whose sum is σ = 74162304. Its totient is φ = 36622080.

The previous prime is 53503477. The next prime is 53503511. The reversal of 53503505 is 50530535.

It is not a de Polignac number, because 53503505 - 2⁶ = 53503441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27677 + ... + 29546.

It is an arithmetic number, because the mean of its divisors is an integer number (4635144).

Almost surely, 2^53503505 is an apocalyptic number.

53503505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53503505 is a deficient number, since it is larger than the sum of its proper divisors (20658799).

53503505 is a wasteful number, since it uses less digits than its factorization.

53503505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57256.

The product of its (nonzero) digits is 5625, while the sum is 26.

The square root of 53503505 is about 7314.6090121072. The cubic root of 53503505 is about 376.8143306839.

The spelling of 53503505 in words is "fifty-three million, five hundred three thousand, five hundred five".