29090225 has 6 divisors (see below), whose sum is σ = 36071910. Its totient is φ = 23272160.

The previous prime is 29090221. The next prime is 29090267. The reversal of 29090225 is 52209092.

It can be written as a sum of positive squares in 3 ways, for example, as 5776 + 29084449 = 76^2 + 5393^2 .

It is not a de Polignac number, because 29090225 - 2² = 29090221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29090221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 581780 + ... + 581829.

It is an arithmetic number, because the mean of its divisors is an integer number (6011985).

Almost surely, 2^29090225 is an apocalyptic number.

29090225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29090225 is a deficient number, since it is larger than the sum of its proper divisors (6981685).

29090225 is a wasteful number, since it uses less digits than its factorization.

29090225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163619 (or 1163614 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 29090225 is about 5393.5354824085. The cubic root of 29090225 is about 307.5499731504.

The spelling of 29090225 in words is "twenty-nine million, ninety thousand, two hundred twenty-five".