53018251 has 16 divisors (see below), whose sum is σ = 62496000. Its totient is φ = 44341920.

The previous prime is 53018219. The next prime is 53018281. The reversal of 53018251 is 15281035.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53018251 - 2⁵ = 53018219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53018201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70986 + ... + 71728.

It is an arithmetic number, because the mean of its divisors is an integer number (3906000).

Almost surely, 2^53018251 is an apocalyptic number.

53018251 is a deficient number, since it is larger than the sum of its proper divisors (9477749).

53018251 is a wasteful number, since it uses less digits than its factorization.

53018251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 53018251 is about 7281.3632652135. The cubic root of 53018251 is about 375.6716874369.

Adding to 53018251 its reverse (15281035), we get a palindrome (68299286).

It can be divided in two parts, 530 and 18251, that added together give a palindrome (18781).

The spelling of 53018251 in words is "fifty-three million, eighteen thousand, two hundred fifty-one".