23551012 has 6 divisors (see below), whose sum is σ = 41214278. Its totient is φ = 11775504.

The previous prime is 23550973. The next prime is 23551019. The reversal of 23551012 is 21015532.

It can be written as a sum of positive squares in only one way, i.e., 21288996 + 2262016 = 4614^2 + 1504^2 .

It is not an unprimeable number, because it can be changed into a prime (23551019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2943873 + ... + 2943880.

Almost surely, 2^23551012 is an apocalyptic number.

It is an amenable number.

23551012 is a deficient number, since it is larger than the sum of its proper divisors (17663266).

23551012 is a wasteful number, since it uses less digits than its factorization.

23551012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5887757 (or 5887755 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 23551012 is about 4852.9384912649. The cubic root of 23551012 is about 286.6398214150.

Adding to 23551012 its reverse (21015532), we get a palindrome (44566544).

The spelling of 23551012 in words is "twenty-three million, five hundred fifty-one thousand, twelve".