53615505 has 16 divisors (see below), whose sum is σ = 85875840. Its totient is φ = 28564608.

The previous prime is 53615503. The next prime is 53615521. The reversal of 53615505 is 50551635.

It is not a de Polignac number, because 53615505 - 2¹ = 53615503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53615503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25276 + ... + 27314.

It is an arithmetic number, because the mean of its divisors is an integer number (5367240).

Almost surely, 2^53615505 is an apocalyptic number.

It is an amenable number.

53615505 is a deficient number, since it is larger than the sum of its proper divisors (32260335).

53615505 is a wasteful number, since it uses less digits than its factorization.

53615505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 53615505 is about 7322.2609213275. The cubic root of 53615505 is about 377.0770785229.

The spelling of 53615505 in words is "fifty-three million, six hundred fifteen thousand, five hundred five".