52997750 has 64 divisors (see below), whose sum is σ = 111646080. Its totient is φ = 18691200.

The previous prime is 52997731. The next prime is 52997759. The reversal of 52997750 is 5779925.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52997759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74396 + ... + 75104.

It is an arithmetic number, because the mean of its divisors is an integer number (1744470).

Almost surely, 2^52997750 is an apocalyptic number.

52997750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52997750 is an abundant number, since it is smaller than the sum of its proper divisors (58648330).

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

52997750 is a wasteful number, since it uses less digits than its factorization.

52997750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 44.

The square root of 52997750 is about 7279.9553570060. The cubic root of 52997750 is about 375.6232598482.

The spelling of 52997750 in words is "fifty-two million, nine hundred ninety-seven thousand, seven hundred fifty".