51542133 has 8 divisors (see below), whose sum is σ = 69849696. Its totient is φ = 33798000.

The previous prime is 51542131. The next prime is 51542137. The reversal of 51542133 is 33124515.

51542133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51542133 - 2¹ = 51542131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51542131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140643 + ... + 141008.

It is an arithmetic number, because the mean of its divisors is an integer number (8731212).

Almost surely, 2^51542133 is an apocalyptic number.

It is an amenable number.

51542133 is a deficient number, since it is larger than the sum of its proper divisors (18307563).

51542133 is a wasteful number, since it uses less digits than its factorization.

51542133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281715.

The product of its digits is 1800, while the sum is 24.

The square root of 51542133 is about 7179.2849922538. The cubic root of 51542133 is about 372.1523757197.

Adding to 51542133 its reverse (33124515), we get a palindrome (84666648).

The spelling of 51542133 in words is "fifty-one million, five hundred forty-two thousand, one hundred thirty-three".