27769225 has 24 divisors (see below), whose sum is σ = 37810080. Its totient is φ = 20064000.

The previous prime is 27769207. The next prime is 27769229. The reversal of 27769225 is 52296772.

It is not a de Polignac number, because 27769225 - 2⁷ = 27769097 is a prime.

It is a super-2 number, since 2×27769225² = 1542259714201250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27769229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66066 + ... + 66484.

It is an arithmetic number, because the mean of its divisors is an integer number (1575420).

Almost surely, 2^27769225 is an apocalyptic number.

27769225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27769225 is a deficient number, since it is larger than the sum of its proper divisors (10040855).

27769225 is a wasteful number, since it uses less digits than its factorization.

27769225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 676 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 27769225 is about 5269.6513167381. The cubic root of 27769225 is about 302.8223460908.

The spelling of 27769225 in words is "twenty-seven million, seven hundred sixty-nine thousand, two hundred twenty-five".