42450551243550 has 60 divisors (see below), whose sum is σ = 117949642762776. Its totient is φ = 11320146997200.

The previous prime is 42450551243537. The next prime is 42450551243561. The reversal of 42450551243550 is 5534215505424.

42450551243550 is a `hidden beast` number, since 4 + 2 + 4 + 5 + 0 + 5 + 51 + 2 + 43 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 42450551243496 and 42450551243505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5240804746 + ... + 5240812845.

Almost surely, 2^{42450551243550} is an apocalyptic number.

42450551243550 is an abundant number, since it is smaller than the sum of its proper divisors (75499091519226).

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

42450551243550 is a wasteful number, since it uses less digits than its factorization.

42450551243550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481617615 (or 10481617601 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

Adding to 42450551243550 its reverse (5534215505424), we get a palindrome (47984766748974).

The spelling of 42450551243550 in words is "forty-two trillion, four hundred fifty billion, five hundred fifty-one million, two hundred forty-three thousand, five hundred fifty".