55414431 has 24 divisors (see below), whose sum is σ = 84581120. Its totient is φ = 34863696.

The previous prime is 55414423. The next prime is 55414439. The reversal of 55414431 is 13441455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55414423) and next prime (55414439).

It is not a de Polignac number, because 55414431 - 2³ = 55414423 is a prime.

It is a super-2 number, since 2×55414431² = 6141518326107522, 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 = 55414395 and 55414404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55414439) 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, 62316 + ... + 63198.

Almost surely, 2^55414431 is an apocalyptic number.

55414431 is a deficient number, since it is larger than the sum of its proper divisors (29166689).

55414431 is a wasteful number, since it uses less digits than its factorization.

55414431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 1272 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 55414431 is about 7444.0869822968. The cubic root of 55414431 is about 381.2480456408.

Adding to 55414431 its reverse (13441455), we get a palindrome (68855886).

The spelling of 55414431 in words is "fifty-five million, four hundred fourteen thousand, four hundred thirty-one".