51862745 has 32 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 36288000.

The previous prime is 51862729. The next prime is 51862747. The reversal of 51862745 is 54726815.

It is not a de Polignac number, because 51862745 - 2⁴ = 51862729 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51862699 and 51862708.

It is not an unprimeable number, because it can be changed into a prime (51862747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245690 + ... + 245900.

It is an arithmetic number, because the mean of its divisors is an integer number (2203740).

Almost surely, 2^51862745 is an apocalyptic number.

51862745 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51862745 is a deficient number, since it is larger than the sum of its proper divisors (18656935).

51862745 is a wasteful number, since it uses less digits than its factorization.

51862745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377.

The product of its digits is 67200, while the sum is 38.

The square root of 51862745 is about 7201.5793406724. The cubic root of 51862745 is about 372.9224251510.

The spelling of 51862745 in words is "fifty-one million, eight hundred sixty-two thousand, seven hundred forty-five".