5551431 has 8 divisors (see below), whose sum is σ = 7503600. Its totient is φ = 3650112.

The previous prime is 5551423. The next prime is 5551433. The reversal of 5551431 is 1341555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5551431 - 2³ = 5551423 is a prime.

It is a super-2 number, since 2×5551431² = 61636772295522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12456 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (937950).

Almost surely, 2^5551431 is an apocalyptic number.

5551431 is a deficient number, since it is larger than the sum of its proper divisors (1952169).

5551431 is a wasteful number, since it uses less digits than its factorization.

5551431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25425.

The product of its digits is 1500, while the sum is 24.

The square root of 5551431 is about 2356.1474911389. The cubic root of 5551431 is about 177.0659207362.

Adding to 5551431 its reverse (1341555), we get a palindrome (6892986).

The spelling of 5551431 in words is "five million, five hundred fifty-one thousand, four hundred thirty-one".