52787485 has 4 divisors (see below), whose sum is σ = 63344988. Its totient is φ = 42229984.

The previous prime is 52787479. The next prime is 52787489. The reversal of 52787485 is 58478725.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16088121 + 36699364 = 4011^2 + 6058^2 .

It is a cyclic number.

It is not a de Polignac number, because 52787485 - 2¹⁷ = 52656413 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 (52787489) 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, 5278744 + ... + 5278753.

It is an arithmetic number, because the mean of its divisors is an integer number (15836247).

Almost surely, 2^52787485 is an apocalyptic number.

It is an amenable number.

52787485 is a deficient number, since it is larger than the sum of its proper divisors (10557503).

52787485 is a wasteful number, since it uses less digits than its factorization.

52787485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557502.

The product of its digits is 627200, while the sum is 46.

The square root of 52787485 is about 7265.4996387035. The cubic root of 52787485 is about 375.1258481316.

The spelling of 52787485 in words is "fifty-two million, seven hundred eighty-seven thousand, four hundred eighty-five".