55290485 has 8 divisors (see below), whose sum is σ = 67033176. Its totient is φ = 43776000.

The previous prime is 55290481. The next prime is 55290497. The reversal of 55290485 is 58409255.

It can be written as a sum of positive squares in 4 ways, for example, as 8532241 + 46758244 = 2921^2 + 6838^2 .

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

It is not a de Polignac number, because 55290485 - 2² = 55290481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55290481) 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, 56516 + ... + 57485.

It is an arithmetic number, because the mean of its divisors is an integer number (8379147).

Almost surely, 2^55290485 is an apocalyptic number.

It is an amenable number.

55290485 is a deficient number, since it is larger than the sum of its proper divisors (11742691).

55290485 is a wasteful number, since it uses less digits than its factorization.

55290485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114103.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 55290485 is about 7435.7571907641. The cubic root of 55290485 is about 380.9635863730.

The spelling of 55290485 in words is "fifty-five million, two hundred ninety thousand, four hundred eighty-five".