29140625 has 16 divisors (see below), whose sum is σ = 36523344. Its totient is φ = 23250000.

The previous prime is 29140603. The next prime is 29140637. The reversal of 29140625 is 52604192.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 23049601 + 6091024 = 4801^2 + 2468^2 .

It is not a de Polignac number, because 29140625 - 2⁶ = 29140561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77939 + ... + 78311.

It is an arithmetic number, because the mean of its divisors is an integer number (2282709).

Almost surely, 2^29140625 is an apocalyptic number.

29140625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29140625 is a deficient number, since it is larger than the sum of its proper divisors (7382719).

29140625 is an frugal number, since it uses more digits than its factorization.

29140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 29140625 is about 5398.2057204223. The cubic root of 29140625 is about 307.7274849605.

The spelling of 29140625 in words is "twenty-nine million, one hundred forty thousand, six hundred twenty-five".