51702725 has 6 divisors (see below), whose sum is σ = 64111410. Its totient is φ = 41362160.

The previous prime is 51702713. The next prime is 51702751. The reversal of 51702725 is 52720715.

It can be written as a sum of positive squares in 3 ways, for example, as 3247204 + 48455521 = 1802^2 + 6961^2 .

It is not a de Polignac number, because 51702725 - 2⁴ = 51702709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1034030 + ... + 1034079.

It is an arithmetic number, because the mean of its divisors is an integer number (10685235).

Almost surely, 2^51702725 is an apocalyptic number.

It is an amenable number.

51702725 is a deficient number, since it is larger than the sum of its proper divisors (12408685).

51702725 is a wasteful number, since it uses less digits than its factorization.

51702725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068119 (or 2068114 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 51702725 is about 7190.4606945591. The cubic root of 51702725 is about 372.5384852810.

The spelling of 51702725 in words is "fifty-one million, seven hundred two thousand, seven hundred twenty-five".