55087378 has 8 divisors (see below), whose sum is σ = 87491772. Its totient is φ = 25923456.

The previous prime is 55087363. The next prime is 55087397. The reversal of 55087378 is 87378055.

It can be written as a sum of positive squares in 2 ways, for example, as 54863649 + 223729 = 7407^2 + 473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 810075 + ... + 810142.

Almost surely, 2^55087378 is an apocalyptic number.

55087378 is a deficient number, since it is larger than the sum of its proper divisors (32404394).

55087378 is a wasteful number, since it uses less digits than its factorization.

55087378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620236.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 55087378 is about 7422.0871727567. The cubic root of 55087378 is about 380.4965300545.

The spelling of 55087378 in words is "fifty-five million, eighty-seven thousand, three hundred seventy-eight".