29365561 has 3 divisors (see below), whose sum is σ = 29370981. Its totient is φ = 29360142.

The previous prime is 29365547. The next prime is 29365571. The reversal of 29365561 is 16556392.

The square root of 29365561 is 5419.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 29365561 - 2⁷ = 29365433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29365561.

It is not an unprimeable number, because it can be changed into a prime (29365541) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2710 + ... + 8128.

It is an arithmetic number, because the mean of its divisors is an integer number (9790327).

Almost surely, 2^29365561 is an apocalyptic number.

29365561 is the 5419-th square number.

29365561 is the 2710-th centered octagonal number.

It is an amenable number.

29365561 is a deficient number, since it is larger than the sum of its proper divisors (5420).

29365561 is an frugal number, since it uses more digits than its factorization.

29365561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10838 (or 5419 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The cubic root of 29365561 is about 308.5172375176.

The spelling of 29365561 in words is "twenty-nine million, three hundred sixty-five thousand, five hundred sixty-one".