55042667520 has 176 divisors, whose sum is σ = 181731153408. Its totient is φ = 14204436480.

The previous prime is 55042667513. The next prime is 55042667521. The reversal of 55042667520 is 2576624055.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55042667521) 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 15 ways as a sum of consecutive naturals, for example, 418362 + ... + 533958.

Almost surely, 2^55042667520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55042667520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90865576704).

55042667520 is an abundant number, since it is smaller than the sum of its proper divisors (126688485888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55042667520 is a wasteful number, since it uses less digits than its factorization.

55042667520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115656 (or 115638 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 55042667520 in words is "fifty-five billion, forty-two million, six hundred sixty-seven thousand, five hundred twenty".