15225601 has 4 divisors (see below), whose sum is σ = 15258672. Its totient is φ = 15192532.

The previous prime is 15225589. The next prime is 15225607. The reversal of 15225601 is 10652251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15225601 - 2¹³ = 15217409 is a prime.

It is a super-2 number, since 2×15225601² = 463637851622402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15225607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15835 + ... + 16768.

It is an arithmetic number, because the mean of its divisors is an integer number (3814668).

Almost surely, 2^15225601 is an apocalyptic number.

It is an amenable number.

15225601 is a deficient number, since it is larger than the sum of its proper divisors (33071).

15225601 is an equidigital number, since it uses as much as digits as its factorization.

15225601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33070.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 15225601 is about 3901.9996155817. Note that the first 3 decimals coincide. The cubic root of 15225601 is about 247.8514600002.

Adding to 15225601 its reverse (10652251), we get a palindrome (25877852).

The spelling of 15225601 in words is "fifteen million, two hundred twenty-five thousand, six hundred one".