52945649407 has 4 divisors (see below), whose sum is σ = 60509313616. Its totient is φ = 45381985200.

The previous prime is 52945649369. The next prime is 52945649441. The reversal of 52945649407 is 70494654925.

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 52945649407 - 2⁷ = 52945649279 is a prime.

It is a super-2 number, since 2×52945649407² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52945649447) 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, 3781832094 + ... + 3781832107.

It is an arithmetic number, because the mean of its divisors is an integer number (15127328404).

Almost surely, 2^52945649407 is an apocalyptic number.

52945649407 is a deficient number, since it is larger than the sum of its proper divisors (7563664209).

52945649407 is an equidigital number, since it uses as much as digits as its factorization.

52945649407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563664208.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 52945649407 in words is "fifty-two billion, nine hundred forty-five million, six hundred forty-nine thousand, four hundred seven".