55145252445 has 16 divisors (see below), whose sum is σ = 88236507840. Its totient is φ = 29409433344.

The previous prime is 55145252419. The next prime is 55145252453. The reversal of 55145252445 is 54425254155.

It is not a de Polignac number, because 55145252445 - 2⁸ = 55145252189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55145252397 and 55145252406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305397 + ... + 451173.

It is an arithmetic number, because the mean of its divisors is an integer number (5514781740).

Almost surely, 2^55145252445 is an apocalyptic number.

It is an amenable number.

55145252445 is a deficient number, since it is larger than the sum of its proper divisors (33091255395).

55145252445 is a wasteful number, since it uses less digits than its factorization.

55145252445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171004.

The product of its digits is 800000, while the sum is 42.

The spelling of 55145252445 in words is "fifty-five billion, one hundred forty-five million, two hundred fifty-two thousand, four hundred forty-five".