55505798 has 4 divisors (see below), whose sum is σ = 83258700. Its totient is φ = 27752898.

The previous prime is 55505789. The next prime is 55505803. The reversal of 55505798 is 89750555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89750555 = 5 ⋅17950111.

It is a super-2 number, since 2×55505798² = 6161787223233608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13876448 + ... + 13876451.

It is an arithmetic number, because the mean of its divisors is an integer number (20814675).

Almost surely, 2^55505798 is an apocalyptic number.

55505798 is a deficient number, since it is larger than the sum of its proper divisors (27752902).

55505798 is a wasteful number, since it uses less digits than its factorization.

55505798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27752901.

The product of its (nonzero) digits is 315000, while the sum is 44.

The square root of 55505798 is about 7450.2213389939. The cubic root of 55505798 is about 381.4574637933.

The spelling of 55505798 in words is "fifty-five million, five hundred five thousand, seven hundred ninety-eight".