53155541 has 4 divisors (see below), whose sum is σ = 53170572. Its totient is φ = 53140512.

The previous prime is 53155523. The next prime is 53155547. The reversal of 53155541 is 14555135.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 30019441 + 23136100 = 5479^2 + 4810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53155541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53155547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (13292643).

Almost surely, 2^53155541 is an apocalyptic number.

It is an amenable number.

53155541 is a deficient number, since it is larger than the sum of its proper divisors (15031).

53155541 is an equidigital number, since it uses as much as digits as its factorization.

53155541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030.

The product of its digits is 7500, while the sum is 29.

The square root of 53155541 is about 7290.7846628467. The cubic root of 53155541 is about 375.9956734261.

The spelling of 53155541 in words is "fifty-three million, one hundred fifty-five thousand, five hundred forty-one".