542254261 has 4 divisors (see below), whose sum is σ = 542304000. Its totient is φ = 542204524.

The previous prime is 542254259. The next prime is 542254291. The reversal of 542254261 is 162452245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 542254261 - 2¹ = 542254259 is a prime.

It is a super-2 number, since 2×542254261² = 588079367145312242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542254241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661 + ... + 32938.

It is an arithmetic number, because the mean of its divisors is an integer number (135576000).

Almost surely, 2^542254261 is an apocalyptic number.

It is an amenable number.

542254261 is a deficient number, since it is larger than the sum of its proper divisors (49739).

542254261 is a wasteful number, since it uses less digits than its factorization.

542254261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49738.

The product of its digits is 19200, while the sum is 31.

The square root of 542254261 is about 23286.3535359231. The cubic root of 542254261 is about 815.4568610432.

The spelling of 542254261 in words is "five hundred forty-two million, two hundred fifty-four thousand, two hundred sixty-one".