55555454 has 8 divisors (see below), whose sum is σ = 84158568. Its totient is φ = 27502600.

The previous prime is 55555429. The next prime is 55555459. The reversal of 55555454 is 45455555.

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

It is a super-2 number, since 2×55555454² = 6172816938292232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555459) 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, 137312 + ... + 137715.

It is an arithmetic number, because the mean of its divisors is an integer number (10519821).

Almost surely, 2^55555454 is an apocalyptic number.

55555454 is a deficient number, since it is larger than the sum of its proper divisors (28603114).

55555454 is a wasteful number, since it uses less digits than its factorization.

55555454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275130.

The product of its digits is 250000, while the sum is 38.

The square root of 55555454 is about 7453.5531124424. The cubic root of 55555454 is about 381.5711816801.

The spelling of 55555454 in words is "fifty-five million, five hundred fifty-five thousand, four hundred fifty-four".