55812485 has 4 divisors (see below), whose sum is σ = 66974988. Its totient is φ = 44649984.

The previous prime is 55812451. The next prime is 55812487. The reversal of 55812485 is 58421855.

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 10640644 + 45171841 = 3262^2 + 6721^2 .

It is a cyclic number.

It is not a de Polignac number, because 55812485 - 2²² = 51618181 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 (55812487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5581244 + ... + 5581253.

It is an arithmetic number, because the mean of its divisors is an integer number (16743747).

Almost surely, 2^55812485 is an apocalyptic number.

It is an amenable number.

55812485 is a deficient number, since it is larger than the sum of its proper divisors (11162503).

55812485 is a wasteful number, since it uses less digits than its factorization.

55812485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11162502.

The product of its digits is 64000, while the sum is 38.

The square root of 55812485 is about 7470.7753948302. The cubic root of 55812485 is about 382.1587313072.

The spelling of 55812485 in words is "fifty-five million, eight hundred twelve thousand, four hundred eighty-five".