4542121553532 has 48 divisors (see below), whose sum is σ = 11224429306272. Its totient is φ = 1424634265600.

The previous prime is 4542121553521. The next prime is 4542121553533. The reversal of 4542121553532 is 2353551212454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542121553533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1850469 + ... + 3536732.

It is an arithmetic number, because the mean of its divisors is an integer number (233842277214).

Almost surely, 2^{4542121553532} is an apocalyptic number.

It is an amenable number.

4542121553532 is an abundant number, since it is smaller than the sum of its proper divisors (6682307752740).

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

4542121553532 is a wasteful number, since it uses less digits than its factorization.

4542121553532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391358 (or 5391356 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

Adding to 4542121553532 its reverse (2353551212454), we get a palindrome (6895672765986).

The spelling of 4542121553532 in words is "four trillion, five hundred forty-two billion, one hundred twenty-one million, five hundred fifty-three thousand, five hundred thirty-two".