12550431 has 16 divisors (see below), whose sum is σ = 17690240. Its totient is φ = 7892640.

The previous prime is 12550411. The next prime is 12550441. The reversal of 12550431 is 13405521.

It is not a de Polignac number, because 12550431 - 2¹¹ = 12548383 is a prime.

It is a super-2 number, since 2×12550431² = 315026636571522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12550398 and 12550407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23736 + ... + 24258.

It is an arithmetic number, because the mean of its divisors is an integer number (1105640).

Almost surely, 2^12550431 is an apocalyptic number.

12550431 is a deficient number, since it is larger than the sum of its proper divisors (5139809).

12550431 is a wasteful number, since it uses less digits than its factorization.

12550431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12550431 is about 3542.6587473252. The cubic root of 12550431 is about 232.3911295115.

Adding to 12550431 its reverse (13405521), we get a palindrome (25955952).

The spelling of 12550431 in words is "twelve million, five hundred fifty thousand, four hundred thirty-one".