52657477 has 4 divisors (see below), whose sum is σ = 52672716. Its totient is φ = 52642240.

The previous prime is 52657471. The next prime is 52657481. The reversal of 52657477 is 77475625.

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 15374241 + 37283236 = 3921^2 + 6106^2 .

It is a cyclic number.

It is not a de Polignac number, because 52657477 - 2¹⁵ = 52624709 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 (52657471) 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, 327 + ... + 10267.

It is an arithmetic number, because the mean of its divisors is an integer number (13168179).

Almost surely, 2^52657477 is an apocalyptic number.

It is an amenable number.

52657477 is a deficient number, since it is larger than the sum of its proper divisors (15239).

52657477 is an equidigital number, since it uses as much as digits as its factorization.

52657477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15238.

The product of its digits is 411600, while the sum is 43.

The square root of 52657477 is about 7256.5471816836. The cubic root of 52657477 is about 374.8176345879.

The spelling of 52657477 in words is "fifty-two million, six hundred fifty-seven thousand, four hundred seventy-seven".