55440254 has 8 divisors (see below), whose sum is σ = 83711568. Its totient is φ = 27536400.

The previous prime is 55440251. The next prime is 55440263. The reversal of 55440254 is 45204455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55440251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91487 + ... + 92090.

It is an arithmetic number, because the mean of its divisors is an integer number (10463946).

Almost surely, 2^55440254 is an apocalyptic number.

55440254 is a deficient number, since it is larger than the sum of its proper divisors (28271314).

55440254 is a wasteful number, since it uses less digits than its factorization.

55440254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183730.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 55440254 is about 7445.8212441610. The cubic root of 55440254 is about 381.3072566878.

The spelling of 55440254 in words is "fifty-five million, four hundred forty thousand, two hundred fifty-four".