55618070 has 16 divisors (see below), whose sum is σ = 100835280. Its totient is φ = 22086624.

The previous prime is 55618019. The next prime is 55618081. The reversal of 55618070 is 7081655.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18617 + ... + 21396.

It is an arithmetic number, because the mean of its divisors is an integer number (6302205).

Almost surely, 2^55618070 is an apocalyptic number.

55618070 is a deficient number, since it is larger than the sum of its proper divisors (45217210).

55618070 is a wasteful number, since it uses less digits than its factorization.

55618070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40159.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 55618070 is about 7457.7523423616. The cubic root of 55618070 is about 381.7144828845.

It can be divided in two parts, 5561 and 8070, that added together give a palindrome (13631).

The spelling of 55618070 in words is "fifty-five million, six hundred eighteen thousand, seventy".