42251052040 has 32 divisors (see below), whose sum is σ = 96403815360. Its totient is φ = 16662385600.

The previous prime is 42251052031. The next prime is 42251052047. The reversal of 42251052040 is 4025015224.

It is a junction number, because it is equal to n+sod(n) for n = 42251051996 and 42251052014.

It is not an unprimeable number, because it can be changed into a prime (42251052047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7435726 + ... + 7441405.

It is an arithmetic number, because the mean of its divisors is an integer number (3012619230).

Almost surely, 2^42251052040 is an apocalyptic number.

42251052040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42251052040 is an abundant number, since it is smaller than the sum of its proper divisors (54152763320).

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

42251052040 is a wasteful number, since it uses less digits than its factorization.

42251052040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14877213 (or 14877209 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 42251052040 its reverse (4025015224), we get a palindrome (46276067264).

The spelling of 42251052040 in words is "forty-two billion, two hundred fifty-one million, fifty-two thousand, forty".