23749225 has 24 divisors (see below), whose sum is σ = 31105152. Its totient is φ = 17952000.

The previous prime is 23749223. The next prime is 23749249. The reversal of 23749225 is 52294732.

It is a happy number.

It is not a de Polignac number, because 23749225 - 2¹ = 23749223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23749223) 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, 59025 + ... + 59425.

It is an arithmetic number, because the mean of its divisors is an integer number (1296048).

Almost surely, 2^23749225 is an apocalyptic number.

23749225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23749225 is a deficient number, since it is larger than the sum of its proper divisors (7355927).

23749225 is a wasteful number, since it uses less digits than its factorization.

23749225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 23749225 is about 4873.3176584335. The cubic root of 23749225 is about 287.4417273201.

The spelling of 23749225 in words is "twenty-three million, seven hundred forty-nine thousand, two hundred twenty-five".