52781025 has 24 divisors (see below), whose sum is σ = 95199264. Its totient is φ = 25590400.

The previous prime is 52781023. The next prime is 52781083. The reversal of 52781025 is 52018725.

It is not a de Polignac number, because 52781025 - 2¹ = 52781023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52780983 and 52781001.

It is not an unprimeable number, because it can be changed into a prime (52781023) 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, 31164 + ... + 32813.

It is an arithmetic number, because the mean of its divisors is an integer number (3966636).

Almost surely, 2^52781025 is an apocalyptic number.

52781025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52781025 is a deficient number, since it is larger than the sum of its proper divisors (42418239).

52781025 is a wasteful number, since it uses less digits than its factorization.

52781025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64001 (or 63996 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 52781025 is about 7265.0550582910. The cubic root of 52781025 is about 375.1105451873.

The spelling of 52781025 in words is "fifty-two million, seven hundred eighty-one thousand, twenty-five".