542681953 has 4 divisors (see below), whose sum is σ = 592016688. Its totient is φ = 493347220.

The previous prime is 542681899. The next prime is 542681957. The reversal of 542681953 is 359186245.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542681953 is a prime.

It is a super-2 number, since 2×542681953² = 589007404223788418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542681957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24667351 + ... + 24667372.

It is an arithmetic number, because the mean of its divisors is an integer number (148004172).

Almost surely, 2^542681953 is an apocalyptic number.

It is an amenable number.

542681953 is a deficient number, since it is larger than the sum of its proper divisors (49334735).

542681953 is a wasteful number, since it uses less digits than its factorization.

542681953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49334734.

The product of its digits is 259200, while the sum is 43.

The square root of 542681953 is about 23295.5350442955. The cubic root of 542681953 is about 815.6711963637.

The spelling of 542681953 in words is "five hundred forty-two million, six hundred eighty-one thousand, nine hundred fifty-three".