52405351 has 4 divisors (see below), whose sum is σ = 52442872. Its totient is φ = 52367832.

The previous prime is 52405337. The next prime is 52405387. The reversal of 52405351 is 15350425.

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 52405351 - 2⁵ = 52405319 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 (52405151) 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, 16581 + ... + 19486.

It is an arithmetic number, because the mean of its divisors is an integer number (13110718).

Almost surely, 2^52405351 is an apocalyptic number.

52405351 is a deficient number, since it is larger than the sum of its proper divisors (37521).

52405351 is a wasteful number, since it uses less digits than its factorization.

52405351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37520.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 52405351 is about 7239.1540251607. The cubic root of 52405351 is about 374.2184635930.

Adding to 52405351 its reverse (15350425), we get a palindrome (67755776).

The spelling of 52405351 in words is "fifty-two million, four hundred five thousand, three hundred fifty-one".