542035521 has 6 divisors (see below), whose sum is σ = 782940210. Its totient is φ = 361357008.

The previous prime is 542035517. The next prime is 542035523. The reversal of 542035521 is 125530245.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 511664400 + 30371121 = 22620^2 + 5511^2 .

It is not a de Polignac number, because 542035521 - 2² = 542035517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542035523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30113076 + ... + 30113093.

It is an arithmetic number, because the mean of its divisors is an integer number (130490035).

Almost surely, 2^542035521 is an apocalyptic number.

It is an amenable number.

542035521 is a deficient number, since it is larger than the sum of its proper divisors (240904689).

542035521 is a wasteful number, since it uses less digits than its factorization.

542035521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60226175 (or 60226172 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 542035521 is about 23281.6563199442. The cubic root of 542035521 is about 815.3471972215.

Adding to 542035521 its reverse (125530245), we get a palindrome (667565766).

The spelling of 542035521 in words is "five hundred forty-two million, thirty-five thousand, five hundred twenty-one".