55087412 has 12 divisors (see below), whose sum is σ = 102073860. Its totient is φ = 25923456.

The previous prime is 55087399. The next prime is 55087421. The reversal of 55087412 is 21478055.

It can be written as a sum of positive squares in 2 ways, for example, as 30426256 + 24661156 = 5516^2 + 4966^2 .

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, 404987 + ... + 405122.

It is an arithmetic number, because the mean of its divisors is an integer number (8506155).

Almost surely, 2^55087412 is an apocalyptic number.

It is an amenable number.

55087412 is a deficient number, since it is larger than the sum of its proper divisors (46986448).

55087412 is a wasteful number, since it uses less digits than its factorization.

55087412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810130 (or 810128 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 55087412 is about 7422.0894632172. The cubic root of 55087412 is about 380.4966083354.

The spelling of 55087412 in words is "fifty-five million, eighty-seven thousand, four hundred twelve".