55554451 has 4 divisors (see below), whose sum is σ = 55845504. Its totient is φ = 55263400.

The previous prime is 55554383. The next prime is 55554479. The reversal of 55554451 is 15445555.

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

It is a cyclic number.

It is not a de Polignac number, because 55554451 - 2¹⁹ = 55030163 is a prime.

It is a super-2 number, since 2×55554451² = 6172594051822802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55554481) 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, 145240 + ... + 145621.

It is an arithmetic number, because the mean of its divisors is an integer number (13961376).

Almost surely, 2^55554451 is an apocalyptic number.

55554451 is a deficient number, since it is larger than the sum of its proper divisors (291053).

55554451 is a wasteful number, since it uses less digits than its factorization.

55554451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291052.

The product of its digits is 50000, while the sum is 34.

The square root of 55554451 is about 7453.4858287918. The cubic root of 55554451 is about 381.5688853667.

The spelling of 55554451 in words is "fifty-five million, five hundred fifty-four thousand, four hundred fifty-one".