55463578 has 4 divisors (see below), whose sum is σ = 83195370. Its totient is φ = 27731788.

The previous prime is 55463549. The next prime is 55463581. The reversal of 55463578 is 87536455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49098049 + 6365529 = 7007^2 + 2523^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13865893 + ... + 13865896.

Almost surely, 2^55463578 is an apocalyptic number.

55463578 is a deficient number, since it is larger than the sum of its proper divisors (27731792).

55463578 is a wasteful number, since it uses less digits than its factorization.

55463578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27731791.

The product of its digits is 504000, while the sum is 43.

The square root of 55463578 is about 7447.3873271101. The cubic root of 55463578 is about 381.3607218321.

The spelling of 55463578 in words is "fifty-five million, four hundred sixty-three thousand, five hundred seventy-eight".