52609749 has 8 divisors (see below), whose sum is σ = 70767552. Its totient is φ = 34762560.

The previous prime is 52609723. The next prime is 52609757. The reversal of 52609749 is 94790625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52609749 - 2⁷ = 52609621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52609749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52609709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77257 + ... + 77934.

It is an arithmetic number, because the mean of its divisors is an integer number (8845944).

Almost surely, 2^52609749 is an apocalyptic number.

It is an amenable number.

52609749 is a deficient number, since it is larger than the sum of its proper divisors (18157803).

52609749 is a wasteful number, since it uses less digits than its factorization.

52609749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155307.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 52609749 is about 7253.2578197662. The cubic root of 52609749 is about 374.7043572044.

The spelling of 52609749 in words is "fifty-two million, six hundred nine thousand, seven hundred forty-nine".