51454045 has 4 divisors (see below), whose sum is σ = 61744860. Its totient is φ = 41163232.

The previous prime is 51454027. The next prime is 51454069. The reversal of 51454045 is 54045415.

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 18207289 + 33246756 = 4267^2 + 5766^2 .

It is a cyclic number.

It is not a de Polignac number, because 51454045 - 2¹⁹ = 50929757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5145400 + ... + 5145409.

It is an arithmetic number, because the mean of its divisors is an integer number (15436215).

Almost surely, 2^51454045 is an apocalyptic number.

It is an amenable number.

51454045 is a deficient number, since it is larger than the sum of its proper divisors (10290815).

51454045 is a wasteful number, since it uses less digits than its factorization.

51454045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290814.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 51454045 is about 7173.1474960438. The cubic root of 51454045 is about 371.9402460195.

The spelling of 51454045 in words is "fifty-one million, four hundred fifty-four thousand, forty-five".