52689650 has 48 divisors (see below), whose sum is σ = 106701504. Its totient is φ = 19241280.

The previous prime is 52689649. The next prime is 52689653. The reversal of 52689650 is 5698625.

It is a junction number, because it is equal to n+sod(n) for n = 52689598 and 52689607.

It is not an unprimeable number, because it can be changed into a prime (52689653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66557 + ... + 67343.

It is an arithmetic number, because the mean of its divisors is an integer number (2222948).

Almost surely, 2^52689650 is an apocalyptic number.

52689650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52689650 is an abundant number, since it is smaller than the sum of its proper divisors (54011854).

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

52689650 is a wasteful number, since it uses less digits than its factorization.

52689650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 52689650 is about 7258.7636688351. The cubic root of 52689650 is about 374.8939552000.

Subtracting from 52689650 its reverse (5698625), we obtain a square (46991025 = 6855²).

The spelling of 52689650 in words is "fifty-two million, six hundred eighty-nine thousand, six hundred fifty".