53051261 has 8 divisors (see below), whose sum is σ = 55052544.
Its totient is φ = 51068160.
The previous prime is 53051239. The next prime is 53051267. The reversal of 53051261 is 16215035.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 53051261 - 26 = 53051197 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53051267) 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, 1550 + ... + 10416.
It is an arithmetic number, because the mean of its divisors is an integer number (6881568).
Almost surely, 253051261 is an apocalyptic number.
It is an amenable number.
53051261 is a deficient number, since it is larger than the sum of its proper divisors (2001283).
53051261 is a wasteful number, since it uses less digits than its factorization.
53051261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9091.
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 53051261 is about 7283.6296583503.
The cubic root of 53051261 is about 375.7496376357.
Adding to 53051261 its reverse (16215035), we get a palindrome (69266296).
The spelling of 53051261 in words is "fifty-three million, fifty-one thousand, two hundred sixty-one".