52155650 has 12 divisors (see below), whose sum is σ = 97009602. Its totient is φ = 20862240.

The previous prime is 52155647. The next prime is 52155673. The reversal of 52155650 is 5655125.

It can be written as a sum of positive squares in 3 ways, for example, as 44903401 + 7252249 = 6701^2 + 2693^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521507 + ... + 521606.

Almost surely, 2^52155650 is an apocalyptic number.

52155650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52155650 is a deficient number, since it is larger than the sum of its proper divisors (44853952).

52155650 is a wasteful number, since it uses less digits than its factorization.

52155650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043125 (or 1043120 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 52155650 is about 7221.8868725562. The cubic root of 52155650 is about 373.6231584136.

The spelling of 52155650 in words is "fifty-two million, one hundred fifty-five thousand, six hundred fifty".