53344350251 has 4 divisors (see below), whose sum is σ = 53489703072. Its totient is φ = 53198997432.

The previous prime is 53344350247. The next prime is 53344350253. The reversal of 53344350251 is 15205344335.

It is a happy number.

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 53344350251 - 2² = 53344350247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53344350253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72675860 + ... + 72676593.

It is an arithmetic number, because the mean of its divisors is an integer number (13372425768).

Almost surely, 2^53344350251 is an apocalyptic number.

53344350251 is a deficient number, since it is larger than the sum of its proper divisors (145352821).

53344350251 is a wasteful number, since it uses less digits than its factorization.

53344350251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145352820.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 53344350251 its reverse (15205344335), we get a palindrome (68549694586).

The spelling of 53344350251 in words is "fifty-three billion, three hundred forty-four million, three hundred fifty thousand, two hundred fifty-one".