29025561 has 4 divisors (see below), whose sum is σ = 38700752. Its totient is φ = 19350372.

The previous prime is 29025533. The next prime is 29025587. The reversal of 29025561 is 16552092.

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 29025561 - 2⁶ = 29025497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29025361) 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, 4837591 + ... + 4837596.

It is an arithmetic number, because the mean of its divisors is an integer number (9675188).

Almost surely, 2^29025561 is an apocalyptic number.

It is an amenable number.

29025561 is a deficient number, since it is larger than the sum of its proper divisors (9675191).

29025561 is an equidigital number, since it uses as much as digits as its factorization.

29025561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9675190.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 29025561 is about 5387.5375636742. The cubic root of 29025561 is about 307.3219221419.

The spelling of 29025561 in words is "twenty-nine million, twenty-five thousand, five hundred sixty-one".