42003551223550 has 96 divisors (see below), whose sum is σ = 92542020056640. Its totient is φ = 13883444582400.

The previous prime is 42003551223539. The next prime is 42003551223611. The reversal of 42003551223550 is 5532215530024.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13466971 + ... + 16290070.

It is an arithmetic number, because the mean of its divisors is an integer number (963979375590).

Almost surely, 2^{42003551223550} is an apocalyptic number.

42003551223550 is an abundant number, since it is smaller than the sum of its proper divisors (50538468833090).

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

42003551223550 is a wasteful number, since it uses less digits than its factorization.

42003551223550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29757206 (or 29757201 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 42003551223550 its reverse (5532215530024), we get a palindrome (47535766753574).

The spelling of 42003551223550 in words is "forty-two trillion, three billion, five hundred fifty-one million, two hundred twenty-three thousand, five hundred fifty".