51542033 has 4 divisors (see below), whose sum is σ = 52638720. Its totient is φ = 50445348.

The previous prime is 51542027. The next prime is 51542047. The reversal of 51542033 is 33024515.

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 an emirpimes, since its reverse is a distinct semiprime: 33024515 = 5 ⋅6604903.

It is a cyclic number.

It is not a de Polignac number, because 51542033 - 2⁶ = 51541969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51542053) 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, 548273 + ... + 548366.

It is an arithmetic number, because the mean of its divisors is an integer number (13159680).

Almost surely, 2^51542033 is an apocalyptic number.

It is an amenable number.

51542033 is a deficient number, since it is larger than the sum of its proper divisors (1096687).

51542033 is a wasteful number, since it uses less digits than its factorization.

51542033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096686.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 51542033 is about 7179.2780277685. The cubic root of 51542033 is about 372.1521350411.

Adding to 51542033 its reverse (33024515), we get a palindrome (84566548).

The spelling of 51542033 in words is "fifty-one million, five hundred forty-two thousand, thirty-three".