55450501 has 4 divisors (see below), whose sum is σ = 56390400. Its totient is φ = 54510604.

The previous prime is 55450469. The next prime is 55450517. The reversal of 55450501 is 10505455.

55450501 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10505455 = 5 ⋅2101091.

It is a cyclic number.

It is not a de Polignac number, because 55450501 - 2⁵ = 55450469 is a prime.

It is a super-2 number, since 2×55450501² = 6149516122302002, 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 (55450301) 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, 469861 + ... + 469978.

It is an arithmetic number, because the mean of its divisors is an integer number (14097600).

Almost surely, 2^55450501 is an apocalyptic number.

It is an amenable number.

55450501 is a deficient number, since it is larger than the sum of its proper divisors (939899).

55450501 is an equidigital number, since it uses as much as digits as its factorization.

55450501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939898.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55450501 is about 7446.5093164516. The cubic root of 55450501 is about 381.3307475299.

Adding to 55450501 its reverse (10505455), we get a palindrome (65955956).

The spelling of 55450501 in words is "fifty-five million, four hundred fifty thousand, five hundred one".