53450000 has 60 divisors (see below), whose sum is σ = 129562020. Its totient is φ = 21360000.

The previous prime is 53449973. The next prime is 53450011. The reversal of 53450000 is 5435.

It can be written as a sum of positive squares in 6 ways, for example, as 44782864 + 8667136 = 6692^2 + 2944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49466 + ... + 50534.

It is an arithmetic number, because the mean of its divisors is an integer number (2159367).

Almost surely, 2^53450000 is an apocalyptic number.

53450000 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 53450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64781010).

53450000 is an abundant number, since it is smaller than the sum of its proper divisors (76112020).

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

53450000 is an equidigital number, since it uses as much as digits as its factorization.

53450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 53450000 is about 7310.9506905737. The cubic root of 53450000 is about 376.6886805035.

Adding to 53450000 its reverse (5435), we get a palindrome (53455435).

The spelling of 53450000 in words is "fifty-three million, four hundred fifty thousand".