55741778 has 8 divisors (see below), whose sum is σ = 84758268. Its totient is φ = 27489024.

The previous prime is 55741727. The next prime is 55741787. The reversal of 55741778 is 87714755.

It can be written as a sum of positive squares in 2 ways, for example, as 54715609 + 1026169 = 7397^2 + 1013^2 .

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, 190751 + ... + 191042.

Almost surely, 2^55741778 is an apocalyptic number.

55741778 is a deficient number, since it is larger than the sum of its proper divisors (29016490).

55741778 is a wasteful number, since it uses less digits than its factorization.

55741778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381868.

The product of its digits is 274400, while the sum is 44.

The square root of 55741778 is about 7466.0416553888. The cubic root of 55741778 is about 381.9972816707.

The spelling of 55741778 in words is "fifty-five million, seven hundred forty-one thousand, seven hundred seventy-eight".