52251013 has 8 divisors (see below), whose sum is σ = 55679832. Its totient is φ = 48861696.

The previous prime is 52250941. The next prime is 52251029. The reversal of 52251013 is 31015225.

It can be written as a sum of positive squares in 4 ways, for example, as 22297284 + 29953729 = 4722^2 + 5473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52251013 - 2¹⁷ = 52119941 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 (52251113) 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, 7120 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (6959979).

Almost surely, 2^52251013 is an apocalyptic number.

It is an amenable number.

52251013 is a deficient number, since it is larger than the sum of its proper divisors (3428819).

52251013 is a wasteful number, since it uses less digits than its factorization.

52251013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19751.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 52251013 is about 7228.4862177360. The cubic root of 52251013 is about 373.8507344718.

Adding to 52251013 its reverse (31015225), we get a palindrome (83266238).

It can be divided in two parts, 5225 and 1013, that multiplied together give a palindrome (5292925).

The spelling of 52251013 in words is "fifty-two million, two hundred fifty-one thousand, thirteen".