52740451 has 4 divisors (see below), whose sum is σ = 52912552. Its totient is φ = 52568352.

The previous prime is 52740361. The next prime is 52740461. The reversal of 52740451 is 15404725.

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

It is a cyclic number.

It is not a de Polignac number, because 52740451 - 2¹⁷ = 52609379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52740461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85590 + ... + 86203.

It is an arithmetic number, because the mean of its divisors is an integer number (13228138).

Almost surely, 2^52740451 is an apocalyptic number.

52740451 is a deficient number, since it is larger than the sum of its proper divisors (172101).

52740451 is a wasteful number, since it uses less digits than its factorization.

52740451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172100.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 52740451 is about 7262.2621131435. The cubic root of 52740451 is about 375.0144018173.

The spelling of 52740451 in words is "fifty-two million, seven hundred forty thousand, four hundred fifty-one".