52400032407 has 8 divisors (see below), whose sum is σ = 77629677680. Its totient is φ = 34933354920.

The previous prime is 52400032397. The next prime is 52400032439. The reversal of 52400032407 is 70423000425.

It is not a de Polignac number, because 52400032407 - 2¹⁴ = 52400016023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1940741941 = 52400032407 / (5 + 2 + 4 + 0 + 0 + 0 + 3 + 2 + 4 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52400032207) 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, 970370944 + ... + 970370997.

It is an arithmetic number, because the mean of its divisors is an integer number (9703709710).

Almost surely, 2^52400032407 is an apocalyptic number.

52400032407 is a deficient number, since it is larger than the sum of its proper divisors (25229645273).

52400032407 is a wasteful number, since it uses less digits than its factorization.

52400032407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940741950 (or 1940741944 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The spelling of 52400032407 in words is "fifty-two billion, four hundred million, thirty-two thousand, four hundred seven".