23051516 has 12 divisors (see below), whose sum is σ = 40658688. Its totient is φ = 11434752.

The previous prime is 23051513. The next prime is 23051519. The reversal of 23051516 is 61515032.

It is an interprime number because it is at equal distance from previous prime (23051513) and next prime (23051519).

It is a junction number, because it is equal to n+sod(n) for n = 23051491 and 23051500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23051513) 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, 22181 + ... + 23196.

It is an arithmetic number, because the mean of its divisors is an integer number (3388224).

Almost surely, 2^23051516 is an apocalyptic number.

It is an amenable number.

23051516 is a deficient number, since it is larger than the sum of its proper divisors (17607172).

23051516 is a wasteful number, since it uses less digits than its factorization.

23051516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45508 (or 45506 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 23051516 is about 4801.1994334749. The cubic root of 23051516 is about 284.5988652396.

Adding to 23051516 its reverse (61515032), we get a palindrome (84566548).

The spelling of 23051516 in words is "twenty-three million, fifty-one thousand, five hundred sixteen".