53420250 has 64 divisors (see below), whose sum is σ = 143619840. Its totient is φ = 13147200.

The previous prime is 53420243. The next prime is 53420261. The reversal of 53420250 is 5202435.

53420250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53420250² = 5707446220125000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7011 + ... + 12489.

It is an arithmetic number, because the mean of its divisors is an integer number (2244060).

Almost surely, 2^53420250 is an apocalyptic number.

53420250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53420250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71809920).

53420250 is an abundant number, since it is smaller than the sum of its proper divisors (90199590).

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

53420250 is a wasteful number, since it uses less digits than its factorization.

53420250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512 (or 5502 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 53420250 is about 7308.9157882685. The cubic root of 53420250 is about 376.6187798609.

Adding to 53420250 its reverse (5202435), we get a palindrome (58622685).

The spelling of 53420250 in words is "fifty-three million, four hundred twenty thousand, two hundred fifty".