51427703 has 4 divisors (see below), whose sum is σ = 54452880. Its totient is φ = 48402528.

The previous prime is 51427693. The next prime is 51427709. The reversal of 51427703 is 30772415.

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

It is a cyclic number.

It is not a de Polignac number, because 51427703 - 2⁶ = 51427639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51427709) 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, 1512563 + ... + 1512596.

It is an arithmetic number, because the mean of its divisors is an integer number (13613220).

Almost surely, 2^51427703 is an apocalyptic number.

51427703 is a deficient number, since it is larger than the sum of its proper divisors (3025177).

51427703 is a wasteful number, since it uses less digits than its factorization.

51427703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025176.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 51427703 is about 7171.3111074615. The cubic root of 51427703 is about 371.8767633370.

The spelling of 51427703 in words is "fifty-one million, four hundred twenty-seven thousand, seven hundred three".