55898586 has 40 divisors (see below), whose sum is σ = 126694260. Its totient is φ = 18418752.

The previous prime is 55898561. The next prime is 55898597. The reversal of 55898586 is 68589855.

55898586 is a `hidden beast` number, since 5 + 58 + 9 + 8 + 586 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51194025 + 4704561 = 7155^2 + 2169^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12480 + ... + 16356.

Almost surely, 2^55898586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55898586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63347130).

55898586 is an abundant number, since it is smaller than the sum of its proper divisors (70795674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55898586 is a wasteful number, since it uses less digits than its factorization.

55898586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 3971 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 54.

The square root of 55898586 is about 7476.5356950930. The cubic root of 55898586 is about 382.3551469964.

The spelling of 55898586 in words is "fifty-five million, eight hundred ninety-eight thousand, five hundred eighty-six".