29525813 has 4 divisors (see below), whose sum is σ = 30809568. Its totient is φ = 28242060.

The previous prime is 29525809. The next prime is 29525831. The reversal of 29525813 is 31852592.

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 29525813 - 2² = 29525809 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 (29525843) 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, 641843 + ... + 641888.

It is an arithmetic number, because the mean of its divisors is an integer number (7702392).

Almost surely, 2^29525813 is an apocalyptic number.

29525813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29525813 is a deficient number, since it is larger than the sum of its proper divisors (1283755).

29525813 is a wasteful number, since it uses less digits than its factorization.

29525813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283754.

The product of its digits is 21600, while the sum is 35.

The square root of 29525813 is about 5433.7660052674. The cubic root of 29525813 is about 309.0774270700.

The spelling of 29525813 in words is "twenty-nine million, five hundred twenty-five thousand, eight hundred thirteen".