42451425535550 has 12 divisors (see below), whose sum is σ = 78959651496216. Its totient is φ = 16980570214200.

The previous prime is 42451425535501. The next prime is 42451425535567. The reversal of 42451425535550 is 5553552415424.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 849028510711 = 42451425535550 / (4 + 2 + 4 + 5 + 1 + 4 + 2 + 5 + 5 + 3 + 5 + 5 + 5 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424514255306 + ... + 424514255405.

It is an arithmetic number, because the mean of its divisors is an integer number (6579970958018).

Almost surely, 2^{42451425535550} is an apocalyptic number.

42451425535550 is a deficient number, since it is larger than the sum of its proper divisors (36508225960666).

42451425535550 is a wasteful number, since it uses less digits than its factorization.

42451425535550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849028510723 (or 849028510718 counting only the distinct ones).

The product of its (nonzero) digits is 12000000, while the sum is 50.

The spelling of 42451425535550 in words is "forty-two trillion, four hundred fifty-one billion, four hundred twenty-five million, five hundred thirty-five thousand, five hundred fifty".