55920485 has 4 divisors (see below), whose sum is σ = 67104588. Its totient is φ = 44736384.

The previous prime is 55920479. The next prime is 55920539. The reversal of 55920485 is 58402955.

It is a Cunningham number, because it is equal to 7478²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20124196 + 35796289 = 4486^2 + 5983^2 .

It is a cyclic number.

It is not a de Polignac number, because 55920485 - 2¹² = 55916389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5592044 + ... + 5592053.

It is an arithmetic number, because the mean of its divisors is an integer number (16776147).

Almost surely, 2^55920485 is an apocalyptic number.

It is an amenable number.

55920485 is a deficient number, since it is larger than the sum of its proper divisors (11184103).

55920485 is a wasteful number, since it uses less digits than its factorization.

55920485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11184102.

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

The square root of 55920485 is about 7478.0000668628. Note that the first 4 decimals coincide. The cubic root of 55920485 is about 382.4050713491.

The spelling of 55920485 in words is "fifty-five million, nine hundred twenty thousand, four hundred eighty-five".