52351709 has 4 divisors (see below), whose sum is σ = 52728480. Its totient is φ = 51974940.

The previous prime is 52351697. The next prime is 52351727. The reversal of 52351709 is 90715325.

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 52351709 - 2¹⁶ = 52286173 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 (52351759) 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, 188177 + ... + 188454.

It is an arithmetic number, because the mean of its divisors is an integer number (13182120).

Almost surely, 2^52351709 is an apocalyptic number.

It is an amenable number.

52351709 is a deficient number, since it is larger than the sum of its proper divisors (376771).

52351709 is a wasteful number, since it uses less digits than its factorization.

52351709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376770.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 52351709 is about 7235.4480856406. The cubic root of 52351709 is about 374.0907369423.

The spelling of 52351709 in words is "fifty-two million, three hundred fifty-one thousand, seven hundred nine".