55012431 has 8 divisors (see below), whose sum is σ = 73401984. Its totient is φ = 36648920.

The previous prime is 55012421. The next prime is 55012453. The reversal of 55012431 is 13421055.

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

It is a cyclic number.

It is not a de Polignac number, because 55012431 - 2¹³ = 55004239 is a prime.

It is a super-2 number, since 2×55012431² = 6052735129059522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55012398 and 55012407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55012411) 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, 885 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (9175248).

Almost surely, 2^55012431 is an apocalyptic number.

55012431 is a deficient number, since it is larger than the sum of its proper divisors (18389553).

55012431 is a wasteful number, since it uses less digits than its factorization.

55012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13021.

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

The square root of 55012431 is about 7417.0365375937. The cubic root of 55012431 is about 380.3238951312.

Adding to 55012431 its reverse (13421055), we get a palindrome (68433486).

The spelling of 55012431 in words is "fifty-five million, twelve thousand, four hundred thirty-one".