52409977 has 4 divisors (see below), whose sum is σ = 52429156. Its totient is φ = 52390800.

The previous prime is 52409971. The next prime is 52409983. The reversal of 52409977 is 77990425.

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

It is an interprime number because it is at equal distance from previous prime (52409971) and next prime (52409983).

It can be written as a sum of positive squares in 2 ways, for example, as 37748736 + 14661241 = 6144^2 + 3829^2 .

It is a cyclic number.

It is not a de Polignac number, because 52409977 - 2³ = 52409969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52409971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4638 + ... + 11239.

It is an arithmetic number, because the mean of its divisors is an integer number (13107289).

Almost surely, 2^52409977 is an apocalyptic number.

It is an amenable number.

52409977 is a deficient number, since it is larger than the sum of its proper divisors (19179).

52409977 is a wasteful number, since it uses less digits than its factorization.

52409977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19178.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 52409977 is about 7239.4735305822. The cubic root of 52409977 is about 374.2294744513.

It can be divided in two parts, 524099 and 77, that added together give a square (524176 = 724²).

The spelling of 52409977 in words is "fifty-two million, four hundred nine thousand, nine hundred seventy-seven".