52505403201405 has 96 divisors (see below), whose sum is σ = 118453748388480. Its totient is φ = 21820427274240.

The previous prime is 52505403201367. The next prime is 52505403201409. The reversal of 52505403201405 is 50410230450525.

52505403201405 is a `hidden beast` number, since 5 + 2 + 5 + 0 + 5 + 40 + 3 + 201 + 405 = 666.

It is not a de Polignac number, because 52505403201405 - 2¹⁰ = 52505403200381 is a prime.

It is a super-2 number, since 2×52505403201405² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52505403201405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505403201409) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 360714724 + ... + 360860253.

It is an arithmetic number, because the mean of its divisors is an integer number (1233893212380).

Almost surely, 2^{52505403201405} is an apocalyptic number.

52505403201405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52505403201405 is an abundant number, since it is smaller than the sum of its proper divisors (65948345187075).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52505403201405 is a wasteful number, since it uses less digits than its factorization.

52505403201405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721575016 (or 721575003 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 52505403201405 in words is "fifty-two trillion, five hundred five billion, four hundred three million, two hundred one thousand, four hundred five".