52909477 has 4 divisors (see below), whose sum is σ = 52943436. Its totient is φ = 52875520.

The previous prime is 52909463. The next prime is 52909481. The reversal of 52909477 is 77490925.

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 8473921 + 44435556 = 2911^2 + 6666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52909477 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 (52909487) 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, 14524 + ... + 17797.

It is an arithmetic number, because the mean of its divisors is an integer number (13235859).

Almost surely, 2^52909477 is an apocalyptic number.

It is an amenable number.

52909477 is a deficient number, since it is larger than the sum of its proper divisors (33959).

52909477 is a wasteful number, since it uses less digits than its factorization.

52909477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33958.

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

The square root of 52909477 is about 7273.8900871542. The cubic root of 52909477 is about 375.4145980462.

The spelling of 52909477 in words is "fifty-two million, nine hundred nine thousand, four hundred seventy-seven".