52815461 has 4 divisors (see below), whose sum is σ = 53010624. Its totient is φ = 52620300.

The previous prime is 52815439. The next prime is 52815479. The reversal of 52815461 is 16451825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52815461 - 2¹⁸ = 52553317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52815431) 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, 97175 + ... + 97716.

It is an arithmetic number, because the mean of its divisors is an integer number (13252656).

Almost surely, 2^52815461 is an apocalyptic number.

It is an amenable number.

52815461 is a deficient number, since it is larger than the sum of its proper divisors (195163).

52815461 is a wasteful number, since it uses less digits than its factorization.

52815461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195162.

The product of its digits is 9600, while the sum is 32.

The square root of 52815461 is about 7267.4246470122. The cubic root of 52815461 is about 375.1921054231.

The spelling of 52815461 in words is "fifty-two million, eight hundred fifteen thousand, four hundred sixty-one".