55550454 has 16 divisors (see below), whose sum is σ = 111667248. Its totient is φ = 18422432.

The previous prime is 55550423. The next prime is 55550459. The reversal of 55550454 is 45405555.

It is a super-2 number, since 2×55550454² = 6171705879212232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22317 + ... + 24680.

It is an arithmetic number, because the mean of its divisors is an integer number (6979203).

Almost surely, 2^55550454 is an apocalyptic number.

55550454 is an abundant number, since it is smaller than the sum of its proper divisors (56116794).

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

55550454 is a wasteful number, since it uses less digits than its factorization.

55550454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47199.

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 55550454 is about 7453.2176943921. The cubic root of 55550454 is about 381.5597341803.

The spelling of 55550454 in words is "fifty-five million, five hundred fifty thousand, four hundred fifty-four".