52405244400 has 120 divisors (see below), whose sum is σ = 171443384064. Its totient is φ = 13677382400.

The previous prime is 52405244377. The next prime is 52405244407. The reversal of 52405244400 is 444250425.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52405244407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408186 + ... + 520985.

Almost surely, 2^52405244400 is an apocalyptic number.

52405244400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52405244400 is an abundant number, since it is smaller than the sum of its proper divisors (119038139664).

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

52405244400 is a wasteful number, since it uses less digits than its factorization.

52405244400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929239 (or 929228 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 52405244400 its reverse (444250425), we get a palindrome (52849494825).

The spelling of 52405244400 in words is "fifty-two billion, four hundred five million, two hundred forty-four thousand, four hundred".