52400261 has 8 divisors (see below), whose sum is σ = 54182400. Its totient is φ = 50623920.

The previous prime is 52400219. The next prime is 52400267. The reversal of 52400261 is 16200425.

It is a happy number.

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 52400261 - 2⁶ = 52400197 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 (52400267) 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, 24680 + ... + 26718.

It is an arithmetic number, because the mean of its divisors is an integer number (6772800).

Almost surely, 2^52400261 is an apocalyptic number.

It is an amenable number.

52400261 is a deficient number, since it is larger than the sum of its proper divisors (1782139).

52400261 is a wasteful number, since it uses less digits than its factorization.

52400261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 52400261 is about 7238.8024562078. The cubic root of 52400261 is about 374.2063475679.

Adding to 52400261 its reverse (16200425), we get a palindrome (68600686).

The spelling of 52400261 in words is "fifty-two million, four hundred thousand, two hundred sixty-one".