542532261 has 16 divisors (see below), whose sum is σ = 749880000. Its totient is φ = 348488448.

The previous prime is 542532227. The next prime is 542532293. The reversal of 542532261 is 162235245.

It is not a de Polignac number, because 542532261 - 2⁶ = 542532197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542532461) 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, 37165 + ... + 49661.

It is an arithmetic number, because the mean of its divisors is an integer number (46867500).

Almost surely, 2^542532261 is an apocalyptic number.

It is an amenable number.

542532261 is a deficient number, since it is larger than the sum of its proper divisors (207347739).

542532261 is a wasteful number, since it uses less digits than its factorization.

542532261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028.

The product of its digits is 14400, while the sum is 30.

The square root of 542532261 is about 23292.3219323450. The cubic root of 542532261 is about 815.5961919157.

The spelling of 542532261 in words is "five hundred forty-two million, five hundred thirty-two thousand, two hundred sixty-one".