29421925 has 12 divisors (see below), whose sum is σ = 39290020. Its totient is φ = 21726720.

The previous prime is 29421913. The next prime is 29421949. The reversal of 29421925 is 52912492.

It can be written as a sum of positive squares in 6 ways, for example, as 12996 + 29408929 = 114^2 + 5423^2 .

It is not a de Polignac number, because 29421925 - 2¹³ = 29413733 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44940 + ... + 45589.

Almost surely, 2^29421925 is an apocalyptic number.

29421925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29421925 is a deficient number, since it is larger than the sum of its proper divisors (9868095).

29421925 is a wasteful number, since it uses less digits than its factorization.

29421925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90552 (or 90547 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 29421925 is about 5424.1980974150. The cubic root of 29421925 is about 308.7144997893.

The spelling of 29421925 in words is "twenty-nine million, four hundred twenty-one thousand, nine hundred twenty-five".