55421276 has 12 divisors (see below), whose sum is σ = 97751808. Its totient is φ = 27492192.

The previous prime is 55421269. The next prime is 55421293. The reversal of 55421276 is 67212455.

It is a congruent number.

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, 54041 + ... + 55056.

It is an arithmetic number, because the mean of its divisors is an integer number (8145984).

Almost surely, 2^55421276 is an apocalyptic number.

It is an amenable number.

55421276 is a deficient number, since it is larger than the sum of its proper divisors (42330532).

55421276 is a wasteful number, since it uses less digits than its factorization.

55421276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109228 (or 109226 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 55421276 is about 7444.5467289822. The cubic root of 55421276 is about 381.2637427278.

The spelling of 55421276 in words is "fifty-five million, four hundred twenty-one thousand, two hundred seventy-six".