55706451 has 4 divisors (see below), whose sum is σ = 74275272. Its totient is φ = 37137632.

The previous prime is 55706429. The next prime is 55706479. The reversal of 55706451 is 15460755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55706451 - 2⁷ = 55706323 is a prime.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9284406 + ... + 9284411.

It is an arithmetic number, because the mean of its divisors is an integer number (18568818).

Almost surely, 2^55706451 is an apocalyptic number.

55706451 is a deficient number, since it is larger than the sum of its proper divisors (18568821).

55706451 is a wasteful number, since it uses less digits than its factorization.

55706451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18568820.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55706451 is about 7463.6754350655. The cubic root of 55706451 is about 381.9165662104.

It can be divided in two parts, 5570 and 6451, that added together give a palindrome (12021).

The spelling of 55706451 in words is "fifty-five million, seven hundred six thousand, four hundred fifty-one".