53332251 has 8 divisors (see below), whose sum is σ = 81268224. Its totient is φ = 30475560.

The previous prime is 53332243. The next prime is 53332261. The reversal of 53332251 is 15223335.

It is a happy number.

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

It is not a de Polignac number, because 53332251 - 2³ = 53332243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53332241) 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, 1269795 + ... + 1269836.

It is an arithmetic number, because the mean of its divisors is an integer number (10158528).

Almost surely, 2^53332251 is an apocalyptic number.

53332251 is a deficient number, since it is larger than the sum of its proper divisors (27935973).

53332251 is a wasteful number, since it uses less digits than its factorization.

53332251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539641.

The product of its digits is 2700, while the sum is 24.

The square root of 53332251 is about 7302.8933307286. The cubic root of 53332251 is about 376.4118652485.

Adding to 53332251 its reverse (15223335), we get a palindrome (68555586).

The spelling of 53332251 in words is "fifty-three million, three hundred thirty-two thousand, two hundred fifty-one".