542220052 has 48 divisors (see below), whose sum is σ = 1067915520. Its totient is φ = 238723200.

The previous prime is 542220001. The next prime is 542220053. The reversal of 542220052 is 250022245.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542220053) 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, 440574 + ... + 441802.

It is an arithmetic number, because the mean of its divisors is an integer number (22248240).

Almost surely, 2^542220052 is an apocalyptic number.

It is an amenable number.

542220052 is a deficient number, since it is larger than the sum of its proper divisors (525695468).

542220052 is a wasteful number, since it uses less digits than its factorization.

542220052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 542220052 is about 23285.6189954229. The cubic root of 542220052 is about 815.4397125378.

Adding to 542220052 its reverse (250022245), we get a palindrome (792242297).

The spelling of 542220052 in words is "five hundred forty-two million, two hundred twenty thousand, fifty-two".