2542121530 has 32 divisors (see below), whose sum is σ = 5187168000. Its totient is φ = 889227072.

The previous prime is 2542121513. The next prime is 2542121531. The reversal of 2542121530 is 351212452.

2542121530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2542121495 and 2542121504.

It is not an unprimeable number, because it can be changed into a prime (2542121531) 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, 512130 + ... + 517069.

It is an arithmetic number, because the mean of its divisors is an integer number (162099000).

Almost surely, 2^2542121530 is an apocalyptic number.

2542121530 is an abundant number, since it is smaller than the sum of its proper divisors (2645046470).

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

2542121530 is a wasteful number, since it uses less digits than its factorization.

2542121530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029238.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2542121530 is about 50419.4558677501. The cubic root of 2542121530 is about 1364.7887573564.

Adding to 2542121530 its reverse (351212452), we get a palindrome (2893333982).

The spelling of 2542121530 in words is "two billion, five hundred forty-two million, one hundred twenty-one thousand, five hundred thirty".