51486353 has 4 divisors (see below), whose sum is σ = 54514980. Its totient is φ = 48457728.

The previous prime is 51486349. The next prime is 51486377. The reversal of 51486353 is 35368415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34774609 + 16711744 = 5897^2 + 4088^2 .

It is a cyclic number.

It is not a de Polignac number, because 51486353 - 2² = 51486349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51486343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514288 + ... + 1514321.

It is an arithmetic number, because the mean of its divisors is an integer number (13628745).

Almost surely, 2^51486353 is an apocalyptic number.

It is an amenable number.

51486353 is a deficient number, since it is larger than the sum of its proper divisors (3028627).

51486353 is a wasteful number, since it uses less digits than its factorization.

51486353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028626.

The product of its digits is 43200, while the sum is 35.

The square root of 51486353 is about 7175.3991526604. The cubic root of 51486353 is about 372.0180768377.

The spelling of 51486353 in words is "fifty-one million, four hundred eighty-six thousand, three hundred fifty-three".