52424781 has 12 divisors (see below), whose sum is σ = 73773792. Its totient is φ = 33109704.

The previous prime is 52424737. The next prime is 52424789. The reversal of 52424781 is 18742425.

It is not a de Polignac number, because 52424781 - 2¹⁴ = 52408397 is a prime.

It is a super-2 number, since 2×52424781² = 5496715325795922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52424789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23121 + ... + 25286.

It is an arithmetic number, because the mean of its divisors is an integer number (6147816).

Almost surely, 2^52424781 is an apocalyptic number.

It is an amenable number.

52424781 is a deficient number, since it is larger than the sum of its proper divisors (21349011).

52424781 is a wasteful number, since it uses less digits than its factorization.

52424781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48448 (or 48429 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 52424781 is about 7240.4959084306. The cubic root of 52424781 is about 374.2647067481.

The spelling of 52424781 in words is "fifty-two million, four hundred twenty-four thousand, seven hundred eighty-one".