29253231 has 20 divisors (see below), whose sum is σ = 49942992. Its totient is φ = 16715808.

The previous prime is 29253193. The next prime is 29253233. The reversal of 29253231 is 13235292.

It is not a de Polignac number, because 29253231 - 2⁶ = 29253167 is a prime.

It is a super-2 number, since 2×29253231² = 1711503047878722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 29253195 and 29253204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29253233) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25230 + ... + 26363.

Almost surely, 2^29253231 is an apocalyptic number.

29253231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

29253231 is a deficient number, since it is larger than the sum of its proper divisors (20689761).

29253231 is an equidigital number, since it uses as much as digits as its factorization.

29253231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51612 (or 51603 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 29253231 is about 5408.6256110032. The cubic root of 29253231 is about 308.1233518119.

The spelling of 29253231 in words is "twenty-nine million, two hundred fifty-three thousand, two hundred thirty-one".