55361010778 has 8 divisors (see below), whose sum is σ = 83500309620. Its totient is φ = 27527574240.

The previous prime is 55361010773. The next prime is 55361010811. The reversal of 55361010778 is 87701016355.

It can be written as a sum of positive squares in 2 ways, for example, as 52204481289 + 3156529489 = 228483^2 + 56183^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55361010773) 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, 76465123 + ... + 76465846.

Almost surely, 2^55361010778 is an apocalyptic number.

55361010778 is a deficient number, since it is larger than the sum of its proper divisors (28139298842).

55361010778 is a wasteful number, since it uses less digits than its factorization.

55361010778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152931152.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 55361010778 in words is "fifty-five billion, three hundred sixty-one million, ten thousand, seven hundred seventy-eight".