55551045 has 32 divisors (see below), whose sum is σ = 97511040. Its totient is φ = 26781440.

The previous prime is 55551043. The next prime is 55551061. The reversal of 55551045 is 54015555.

55551045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55551045 - 2¹ = 55551043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55551043) 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 31 ways as a sum of consecutive naturals, for example, 31651 + ... + 33359.

It is an arithmetic number, because the mean of its divisors is an integer number (3047220).

Almost surely, 2^55551045 is an apocalyptic number.

55551045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55551045 is a deficient number, since it is larger than the sum of its proper divisors (41959995).

55551045 is a wasteful number, since it uses less digits than its factorization.

55551045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 55551045 is about 7453.2573415923. The cubic root of 55551045 is about 381.5610873106.

It can be divided in two parts, 555510 and 45, that added together give a palindrome (555555).

The spelling of 55551045 in words is "fifty-five million, five hundred fifty-one thousand, forty-five".