23001550 has 48 divisors (see below), whose sum is σ = 50278032. Its totient is φ = 7718400.

The previous prime is 23001509. The next prime is 23001551. The reversal of 23001550 is 5510032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5542 + ... + 8758.

It is an arithmetic number, because the mean of its divisors is an integer number (1047459).

Almost surely, 2^23001550 is an apocalyptic number.

23001550 is an abundant number, since it is smaller than the sum of its proper divisors (27276482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23001550 is a wasteful number, since it uses less digits than its factorization.

23001550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253 (or 3248 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 23001550 is about 4795.9931192611. The cubic root of 23001550 is about 284.3930862385.

Adding to 23001550 its reverse (5510032), we get a palindrome (28511582).

The spelling of 23001550 in words is "twenty-three million, one thousand, five hundred fifty".