55277448 has 16 divisors (see below), whose sum is σ = 138193680. Its totient is φ = 18425808.

The previous prime is 55277437. The next prime is 55277459. The reversal of 55277448 is 84477255.

It is an interprime number because it is at equal distance from previous prime (55277437) and next prime (55277459).

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, 1151590 + ... + 1151637.

It is an arithmetic number, because the mean of its divisors is an integer number (8637105).

Almost surely, 2^55277448 is an apocalyptic number.

It is an amenable number.

55277448 is an abundant number, since it is smaller than the sum of its proper divisors (82916232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55277448 is a wasteful number, since it uses less digits than its factorization.

55277448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303236 (or 2303232 counting only the distinct ones).

The product of its digits is 313600, while the sum is 42.

The square root of 55277448 is about 7434.8804966859. The cubic root of 55277448 is about 380.9336414214.

The spelling of 55277448 in words is "fifty-five million, two hundred seventy-seven thousand, four hundred forty-eight".