52626729 has 4 divisors (see below), whose sum is σ = 70168976. Its totient is φ = 35084484.

The previous prime is 52626727. The next prime is 52626733. The reversal of 52626729 is 92762625.

It is a happy number.

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 not a de Polignac number, because 52626729 - 2¹ = 52626727 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52626727) 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, 8771119 + ... + 8771124.

It is an arithmetic number, because the mean of its divisors is an integer number (17542244).

Almost surely, 2^52626729 is an apocalyptic number.

It is an amenable number.

52626729 is a deficient number, since it is larger than the sum of its proper divisors (17542247).

52626729 is a wasteful number, since it uses less digits than its factorization.

52626729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17542246.

The product of its digits is 90720, while the sum is 39.

The square root of 52626729 is about 7254.4282338445. The cubic root of 52626729 is about 374.7446652951.

The spelling of 52626729 in words is "fifty-two million, six hundred twenty-six thousand, seven hundred twenty-nine".