123552445450 has 48 divisors (see below), whose sum is σ = 266557207104. Its totient is φ = 41728579200.

The previous prime is 123552445441. The next prime is 123552445459. The reversal of 123552445450 is 54544255321.

It is an interprime number because it is at equal distance from previous prime (123552445441) and next prime (123552445459).

It is not an unprimeable number, because it can be changed into a prime (123552445459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2610931 + ... + 2657830.

It is an arithmetic number, because the mean of its divisors is an integer number (5553275148).

Almost surely, 2^123552445450 is an apocalyptic number.

123552445450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123552445450 is an abundant number, since it is smaller than the sum of its proper divisors (143004761654).

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

123552445450 is a wasteful number, since it uses less digits than its factorization.

123552445450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268847 (or 5268842 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 123552445450 in words is "one hundred twenty-three billion, five hundred fifty-two million, four hundred forty-five thousand, four hundred fifty".