53115567 has 8 divisors (see below), whose sum is σ = 71982000. Its totient is φ = 34829760.

The previous prime is 53115563. The next prime is 53115577. The reversal of 53115567 is 76551135.

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

It is not a de Polignac number, because 53115567 - 2² = 53115563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144942 + ... + 145307.

It is an arithmetic number, because the mean of its divisors is an integer number (8997750).

Almost surely, 2^53115567 is an apocalyptic number.

53115567 is a deficient number, since it is larger than the sum of its proper divisors (18866433).

53115567 is a wasteful number, since it uses less digits than its factorization.

53115567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290313.

The product of its digits is 15750, while the sum is 33.

The square root of 53115567 is about 7288.0427413675. The cubic root of 53115567 is about 375.9013977716.

It can be divided in two parts, 5311 and 5567, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 53115567 in words is "fifty-three million, one hundred fifteen thousand, five hundred sixty-seven".