52142751 has 8 divisors (see below), whose sum is σ = 77248560. Its totient is φ = 34761816.

The previous prime is 52142749. The next prime is 52142759. The reversal of 52142751 is 15724125.

It is not a de Polignac number, because 52142751 - 2¹ = 52142749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1931213 = 52142751 / (5 + 2 + 1 + 4 + 2 + 7 + 5 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52142759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965580 + ... + 965633.

It is an arithmetic number, because the mean of its divisors is an integer number (9656070).

Almost surely, 2^52142751 is an apocalyptic number.

52142751 is a deficient number, since it is larger than the sum of its proper divisors (25105809).

52142751 is a wasteful number, since it uses less digits than its factorization.

52142751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931222 (or 1931216 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 52142751 is about 7220.9937681735. The cubic root of 52142751 is about 373.5923547040.

Adding to 52142751 its reverse (15724125), we get a palindrome (67866876).

The spelling of 52142751 in words is "fifty-two million, one hundred forty-two thousand, seven hundred fifty-one".