52455400 has 48 divisors (see below), whose sum is σ = 124952940. Its totient is φ = 20467200.

The previous prime is 52455397. The next prime is 52455401. The reversal of 52455400 is 455425.

It can be written as a sum of positive squares in 6 ways, for example, as 8836 + 52446564 = 94^2 + 7242^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (52455401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5002 + ... + 11398.

Almost surely, 2^52455400 is an apocalyptic number.

52455400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52455400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62476470).

52455400 is an abundant number, since it is smaller than the sum of its proper divisors (72497540).

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

52455400 is a wasteful number, since it uses less digits than its factorization.

52455400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454 (or 6445 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 52455400 is about 7242.6100267790. The cubic root of 52455400 is about 374.3375563976.

Adding to 52455400 its sum of digits (25), we get a palindrome (52455425).

The spelling of 52455400 in words is "fifty-two million, four hundred fifty-five thousand, four hundred".