55706431 has 8 divisors (see below), whose sum is σ = 60938064. Its totient is φ = 50502720.

The previous prime is 55706429. The next prime is 55706479. The reversal of 55706431 is 13460755.

55706431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55706431 - 2¹ = 55706429 is a prime.

It is a super-2 number, since 2×55706431² = 6206412909515522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55706393 and 55706402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55706491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2686 + ... + 10891.

It is an arithmetic number, because the mean of its divisors is an integer number (7617258).

Almost surely, 2^55706431 is an apocalyptic number.

55706431 is a deficient number, since it is larger than the sum of its proper divisors (5231633).

55706431 is a wasteful number, since it uses less digits than its factorization.

55706431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13961.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55706431 is about 7463.6740952429. The cubic root of 55706431 is about 381.9165205045.

The spelling of 55706431 in words is "fifty-five million, seven hundred six thousand, four hundred thirty-one".