55453901 has 4 divisors (see below), whose sum is σ = 55858812. Its totient is φ = 55048992.

The previous prime is 55453841. The next prime is 55453903. The reversal of 55453901 is 10935455.

55453901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28879876 + 26574025 = 5374^2 + 5155^2 .

It is a cyclic number.

It is not a de Polignac number, because 55453901 - 2¹⁰ = 55452877 is a prime.

It is a super-2 number, since 2×55453901² = 6150270272235602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55453903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202250 + ... + 202523.

It is an arithmetic number, because the mean of its divisors is an integer number (13964703).

Almost surely, 2^55453901 is an apocalyptic number.

It is an amenable number.

55453901 is a deficient number, since it is larger than the sum of its proper divisors (404911).

55453901 is a wasteful number, since it uses less digits than its factorization.

55453901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404910.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 55453901 is about 7446.7376078388. The cubic root of 55453901 is about 381.3385412559.

The spelling of 55453901 in words is "fifty-five million, four hundred fifty-three thousand, nine hundred one".