53249400 has 240 divisors, whose sum is σ = 195802200. Its totient is φ = 13374720.

The previous prime is 53249387. The next prime is 53249429. The reversal of 53249400 is 494235.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 307714 + ... + 307886.

Almost surely, 2^53249400 is an apocalyptic number.

53249400 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 53249400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97901100).

53249400 is an abundant number, since it is smaller than the sum of its proper divisors (142552800).

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

53249400 is a wasteful number, since it uses less digits than its factorization.

53249400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53249400 is about 7297.2186482248. The cubic root of 53249400 is about 376.2168471504.

The spelling of 53249400 in words is "fifty-three million, two hundred forty-nine thousand, four hundred".