53261505 has 24 divisors (see below), whose sum is σ = 100713600. Its totient is φ = 25823520.

The previous prime is 53261473. The next prime is 53261519. The reversal of 53261505 is 50516235.

It is not a de Polignac number, because 53261505 - 2⁵ = 53261473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53305 + ... + 54294.

It is an arithmetic number, because the mean of its divisors is an integer number (4196400).

Almost surely, 2^53261505 is an apocalyptic number.

53261505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53261505 is a deficient number, since it is larger than the sum of its proper divisors (47452095).

53261505 is a wasteful number, since it uses less digits than its factorization.

53261505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107621 (or 107618 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 53261505 is about 7298.0480266986. The cubic root of 53261505 is about 376.2453530108.

The spelling of 53261505 in words is "fifty-three million, two hundred sixty-one thousand, five hundred five".