55456281 has 12 divisors (see below), whose sum is σ = 80853552. Its totient is φ = 36624696.

The previous prime is 55456273. The next prime is 55456301. The reversal of 55456281 is 18265455.

It is not a de Polignac number, because 55456281 - 2³ = 55456273 is a prime.

It is a super-2 number, since 2×55456281² = 6150798204701922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55456211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27831 + ... + 29756.

It is an arithmetic number, because the mean of its divisors is an integer number (6737796).

Almost surely, 2^55456281 is an apocalyptic number.

It is an amenable number.

55456281 is a deficient number, since it is larger than the sum of its proper divisors (25397271).

55456281 is a wasteful number, since it uses less digits than its factorization.

55456281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57700 (or 57697 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 55456281 is about 7446.8974076457. The cubic root of 55456281 is about 381.3439966746.

The spelling of 55456281 in words is "fifty-five million, four hundred fifty-six thousand, two hundred eighty-one".