55552051687 has 4 divisors (see below), whose sum is σ = 60602238216. Its totient is φ = 50501865160.

The previous prime is 55552051619. The next prime is 55552051693. The reversal of 55552051687 is 78615025555.

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 55552051687 - 2⁷ = 55552051559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55552051687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55552051187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525093248 + ... + 2525093269.

It is an arithmetic number, because the mean of its divisors is an integer number (15150559554).

Almost surely, 2^55552051687 is an apocalyptic number.

55552051687 is a deficient number, since it is larger than the sum of its proper divisors (5050186529).

55552051687 is a wasteful number, since it uses less digits than its factorization.

55552051687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050186528.

The product of its (nonzero) digits is 2100000, while the sum is 49.

The spelling of 55552051687 in words is "fifty-five billion, five hundred fifty-two million, fifty-one thousand, six hundred eighty-seven".