55904485 has 16 divisors (see below), whose sum is σ = 82567296. Its totient is φ = 35385408.

The previous prime is 55904437. The next prime is 55904491. The reversal of 55904485 is 58440955.

It is a cyclic number.

It is not a de Polignac number, because 55904485 - 2¹¹ = 55902437 is a prime.

It is a super-2 number, since 2×55904485² = 6250622886230450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60979 + ... + 61888.

It is an arithmetic number, because the mean of its divisors is an integer number (5160456).

Almost surely, 2^55904485 is an apocalyptic number.

It is an amenable number.

55904485 is a deficient number, since it is larger than the sum of its proper divisors (26662811).

55904485 is a wasteful number, since it uses less digits than its factorization.

55904485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122892.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 55904485 is about 7476.9301855775. The cubic root of 55904485 is about 382.3685965536.

The spelling of 55904485 in words is "fifty-five million, nine hundred four thousand, four hundred eighty-five".