55454531 has 4 divisors (see below), whose sum is σ = 60495864. Its totient is φ = 50413200.

The previous prime is 55454519. The next prime is 55454533. The reversal of 55454531 is 13545455.

55454531 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 is a cyclic number.

It is not a de Polignac number, because 55454531 - 2¹⁴ = 55438147 is a prime.

It is a super-2 number, since 2×55454531² = 6150410016859922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55454533) 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, 2520650 + ... + 2520671.

It is an arithmetic number, because the mean of its divisors is an integer number (15123966).

Almost surely, 2^55454531 is an apocalyptic number.

55454531 is a deficient number, since it is larger than the sum of its proper divisors (5041333).

55454531 is a wasteful number, since it uses less digits than its factorization.

55454531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041332.

The product of its digits is 30000, while the sum is 32.

The square root of 55454531 is about 7446.7799081214. The cubic root of 55454531 is about 381.3399853526.

Adding to 55454531 its reverse (13545455), we get a palindrome (68999986).

The spelling of 55454531 in words is "fifty-five million, four hundred fifty-four thousand, five hundred thirty-one".