53435400 has 192 divisors, whose sum is σ = 178113600. Its totient is φ = 13224960.

The previous prime is 53435387. The next prime is 53435401. The reversal of 53435400 is 453435.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53435401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 643759 + ... + 643841.

It is an arithmetic number, because the mean of its divisors is an integer number (927675).

Almost surely, 2^53435400 is an apocalyptic number.

53435400 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 53435400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89056800).

53435400 is an abundant number, since it is smaller than the sum of its proper divisors (124678200).

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

53435400 is a wasteful number, since it uses less digits than its factorization.

53435400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53435400 is about 7309.9521202262. The cubic root of 53435400 is about 376.6543795646.

Adding to 53435400 its reverse (453435), we get a palindrome (53888835).

It can be divided in two parts, 53435 and 400, that added together give a palindrome (53835).

The spelling of 53435400 in words is "fifty-three million, four hundred thirty-five thousand, four hundred".