55115454 has 16 divisors (see below), whose sum is σ = 111784320. Its totient is φ = 18112920.

The previous prime is 55115441. The next prime is 55115461. The reversal of 55115454 is 45451155.

It is a super-2 number, since 2×55115454² = 6075426539252232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64264 + ... + 65115.

It is an arithmetic number, because the mean of its divisors is an integer number (6986520).

Almost surely, 2^55115454 is an apocalyptic number.

55115454 is an abundant number, since it is smaller than the sum of its proper divisors (56668866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55115454 is a wasteful number, since it uses less digits than its factorization.

55115454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129455.

The product of its digits is 10000, while the sum is 30.

The square root of 55115454 is about 7423.9783135459. The cubic root of 55115454 is about 380.5611607473.

The spelling of 55115454 in words is "fifty-five million, one hundred fifteen thousand, four hundred fifty-four".