52542751 has 4 divisors (see below), whose sum is σ = 54354600. Its totient is φ = 50730904.

The previous prime is 52542727. The next prime is 52542781. The reversal of 52542751 is 15724525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52542751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52542781) 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, 905881 + ... + 905938.

It is an arithmetic number, because the mean of its divisors is an integer number (13588650).

Almost surely, 2^52542751 is an apocalyptic number.

52542751 is a deficient number, since it is larger than the sum of its proper divisors (1811849).

52542751 is a wasteful number, since it uses less digits than its factorization.

52542751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811848.

The product of its digits is 14000, while the sum is 31.

The square root of 52542751 is about 7248.6378720419. The cubic root of 52542751 is about 374.5452288597.

The spelling of 52542751 in words is "fifty-two million, five hundred forty-two thousand, seven hundred fifty-one".