2120554542 has 16 divisors (see below), whose sum is σ = 4244384592. Its totient is φ = 706305600.

The previous prime is 2120554519. The next prime is 2120554543. The reversal of 2120554542 is 2454550212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120554543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128023 + ... + 143634.

It is an arithmetic number, because the mean of its divisors is an integer number (265274037).

Almost surely, 2^2120554542 is an apocalyptic number.

2120554542 is an abundant number, since it is smaller than the sum of its proper divisors (2123830050).

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

2120554542 is a wasteful number, since it uses less digits than its factorization.

2120554542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272963.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2120554542 is about 46049.4792804436. The cubic root of 2120554542 is about 1284.7436577288.

The spelling of 2120554542 in words is "two billion, one hundred twenty million, five hundred fifty-four thousand, five hundred forty-two".