55445148501 has 4 divisors (see below), whose sum is σ = 73926864672. Its totient is φ = 36963432332.

The previous prime is 55445148497. The next prime is 55445148529. The reversal of 55445148501 is 10584154455.

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.

It is a cyclic number.

It is not a de Polignac number, because 55445148501 - 2² = 55445148497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55445148581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9240858081 + ... + 9240858086.

It is an arithmetic number, because the mean of its divisors is an integer number (18481716168).

Almost surely, 2^55445148501 is an apocalyptic number.

It is an amenable number.

55445148501 is a deficient number, since it is larger than the sum of its proper divisors (18481716171).

55445148501 is a wasteful number, since it uses less digits than its factorization.

55445148501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18481716170.

The product of its (nonzero) digits is 320000, while the sum is 42.

The spelling of 55445148501 in words is "fifty-five billion, four hundred forty-five million, one hundred forty-eight thousand, five hundred one".