55403891542 has 8 divisors (see below), whose sum is σ = 85038531336. Its totient is φ = 27057714432.

The previous prime is 55403891533. The next prime is 55403891581. The reversal of 55403891542 is 24519830455.

55403891542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55403891492 and 55403891501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322115563 + ... + 322115734.

It is an arithmetic number, because the mean of its divisors is an integer number (10629816417).

Almost surely, 2^55403891542 is an apocalyptic number.

55403891542 is a deficient number, since it is larger than the sum of its proper divisors (29634639794).

55403891542 is a wasteful number, since it uses less digits than its factorization.

55403891542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644231342.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 55403891542 in words is "fifty-five billion, four hundred three million, eight hundred ninety-one thousand, five hundred forty-two".