55330454 has 4 divisors (see below), whose sum is σ = 82995684. Its totient is φ = 27665226.

The previous prime is 55330453. The next prime is 55330459. The reversal of 55330454 is 45403355.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×55330454² = 6122918279692232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55330453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832612 + ... + 13832615.

It is an arithmetic number, because the mean of its divisors is an integer number (20748921).

Almost surely, 2^55330454 is an apocalyptic number.

55330454 is a deficient number, since it is larger than the sum of its proper divisors (27665230).

55330454 is a wasteful number, since it uses less digits than its factorization.

55330454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27665229.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 55330454 is about 7438.4443266049. Note that the first 3 decimals coincide. The cubic root of 55330454 is about 381.0553626583.

The spelling of 55330454 in words is "fifty-five million, three hundred thirty thousand, four hundred fifty-four".