51403045 has 8 divisors (see below), whose sum is σ = 64365696. Its totient is φ = 39334416.

The previous prime is 51403039. The next prime is 51403073. The reversal of 51403045 is 54030415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51403045 - 2¹⁹ = 50878757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223377 + ... + 223606.

It is an arithmetic number, because the mean of its divisors is an integer number (8045712).

Almost surely, 2^51403045 is an apocalyptic number.

It is an amenable number.

51403045 is a deficient number, since it is larger than the sum of its proper divisors (12962651).

51403045 is a wasteful number, since it uses less digits than its factorization.

51403045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447011.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51403045 is about 7169.5916899081. The cubic root of 51403045 is about 371.8173193498.

The spelling of 51403045 in words is "fifty-one million, four hundred three thousand, forty-five".