55257746 has 4 divisors (see below), whose sum is σ = 82886622. Its totient is φ = 27628872.

The previous prime is 55257739. The next prime is 55257751. The reversal of 55257746 is 64775255.

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., 29866225 + 25391521 = 5465^2 + 5039^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13814435 + ... + 13814438.

Almost surely, 2^55257746 is an apocalyptic number.

55257746 is a deficient number, since it is larger than the sum of its proper divisors (27628876).

55257746 is a wasteful number, since it uses less digits than its factorization.

55257746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27628875.

The product of its digits is 294000, while the sum is 41.

The square root of 55257746 is about 7433.5554077440. Note that the first 3 decimals coincide. The cubic root of 55257746 is about 380.8883785598. Note that the first 3 decimals are identical.

The spelling of 55257746 in words is "fifty-five million, two hundred fifty-seven thousand, seven hundred forty-six".