51852405 has 16 divisors (see below), whose sum is σ = 90506304. Its totient is φ = 25140480.

The previous prime is 51852403. The next prime is 51852433. The reversal of 51852405 is 50425815.

It is not a de Polignac number, because 51852405 - 2¹ = 51852403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51852403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156964 + ... + 157293.

It is an arithmetic number, because the mean of its divisors is an integer number (5656644).

Almost surely, 2^51852405 is an apocalyptic number.

51852405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51852405 is a deficient number, since it is larger than the sum of its proper divisors (38653899).

51852405 is a wasteful number, since it uses less digits than its factorization.

51852405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314276.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 51852405 is about 7200.8614068040. The cubic root of 51852405 is about 372.8976400240.

The spelling of 51852405 in words is "fifty-one million, eight hundred fifty-two thousand, four hundred five".