51205492 has 24 divisors (see below), whose sum is σ = 97415136. Its totient is φ = 23409888.

The previous prime is 51205481. The next prime is 51205493. The reversal of 51205492 is 29450215.

51205492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51205492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51205493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963 + ... + 10165.

It is an arithmetic number, because the mean of its divisors is an integer number (4058964).

Almost surely, 2^51205492 is an apocalyptic number.

51205492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51205492 is a deficient number, since it is larger than the sum of its proper divisors (46209644).

51205492 is a wasteful number, since it uses less digits than its factorization.

51205492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9327 (or 9325 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51205492 is about 7155.8012828753. The cubic root of 51205492 is about 371.3403830924.

The spelling of 51205492 in words is "fifty-one million, two hundred five thousand, four hundred ninety-two".