52400806 has 8 divisors (see below), whose sum is σ = 80725680. Its totient is φ = 25492248.

The previous prime is 52400771. The next prime is 52400807. The reversal of 52400806 is 60800425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52400807) 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, 353986 + ... + 354133.

It is an arithmetic number, because the mean of its divisors is an integer number (10090710).

Almost surely, 2^52400806 is an apocalyptic number.

52400806 is a deficient number, since it is larger than the sum of its proper divisors (28324874).

52400806 is a wasteful number, since it uses less digits than its factorization.

52400806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708158.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 52400806 is about 7238.8401004581. The cubic root of 52400806 is about 374.2076449008.

The spelling of 52400806 in words is "fifty-two million, four hundred thousand, eight hundred six".