53975380 has 36 divisors (see below), whose sum is σ = 117428220. Its totient is φ = 20839168.

The previous prime is 53975377. The next prime is 53975413. The reversal of 53975380 is 8357935.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 11664 + 53963716 = 108^2 + 7346^2 .

It is a super-2 number, since 2×53975380² = 5826683292288800, which contains 22 as substring.

It is a congruent number.

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, 15216 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (3261895).

Almost surely, 2^53975380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53975380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58714110).

53975380 is an abundant number, since it is smaller than the sum of its proper divisors (63452840).

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

53975380 is a wasteful number, since it uses less digits than its factorization.

53975380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 53975380 is about 7346.7938585481. The cubic root of 53975380 is about 377.9188631692.

The spelling of 53975380 in words is "fifty-three million, nine hundred seventy-five thousand, three hundred eighty".