53453500 has 24 divisors (see below), whose sum is σ = 116743536. Its totient is φ = 21381200.

The previous prime is 53453497. The next prime is 53453509. The reversal of 53453500 is 535435.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453509) 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, 52954 + ... + 53953.

It is an arithmetic number, because the mean of its divisors is an integer number (4864314).

Almost surely, 2^53453500 is an apocalyptic number.

53453500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53453500 is an abundant number, since it is smaller than the sum of its proper divisors (63290036).

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

53453500 is a wasteful number, since it uses less digits than its factorization.

53453500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106926 (or 106914 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 53453500 is about 7311.1900536096. The cubic root of 53453500 is about 376.6969024031.

Adding to 53453500 its reverse (535435), we get a palindrome (53988935).

The spelling of 53453500 in words is "fifty-three million, four hundred fifty-three thousand, five hundred".