29925231 has 48 divisors (see below), whose sum is σ = 49641984. Its totient is φ = 15951936.

The previous prime is 29925223. The next prime is 29925239. The reversal of 29925231 is 13252992.

It is an interprime number because it is at equal distance from previous prime (29925223) and next prime (29925239).

It is not a de Polignac number, because 29925231 - 2³ = 29925223 is a prime.

It is a super-2 number, since 2×29925231² = 1791038900806722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29925192 and 29925201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29925239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179110 + ... + 179276.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 2^29925231 is an apocalyptic number.

29925231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

29925231 is a deficient number, since it is larger than the sum of its proper divisors (19716753).

29925231 is a wasteful number, since it uses less digits than its factorization.

29925231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 253 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 29925231 is about 5470.3958723295. The cubic root of 29925231 is about 310.4648973259.

The spelling of 29925231 in words is "twenty-nine million, nine hundred twenty-five thousand, two hundred thirty-one".