12551475 has 24 divisors (see below), whose sum is σ = 20949552. Its totient is φ = 6630400.

The previous prime is 12551447. The next prime is 12551479. The reversal of 12551475 is 57415521.

It is not a de Polignac number, because 12551475 - 2⁵ = 12551443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12551479) 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, 7735 + ... + 9215.

It is an arithmetic number, because the mean of its divisors is an integer number (872898).

Almost surely, 2^12551475 is an apocalyptic number.

12551475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12551475 is a deficient number, since it is larger than the sum of its proper divisors (8398077).

12551475 is a wasteful number, since it uses less digits than its factorization.

12551475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1602 counting only the distinct ones).

The product of its digits is 7000, while the sum is 30.

The square root of 12551475 is about 3542.8060912220. The cubic root of 12551475 is about 232.3975731046.

Adding to 12551475 its reverse (57415521), we get a palindrome (69966996).

The spelling of 12551475 in words is "twelve million, five hundred fifty-one thousand, four hundred seventy-five".