51600551 has 2 divisors, whose sum is σ = 51600552. Its totient is φ = 51600550.

The previous prime is 51600547. The next prime is 51600557. The reversal of 51600551 is 15500615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51600551 - 2² = 51600547 is a prime.

It is a Chen prime.

It is equal to p_3091343 and since 51600551 and 3091343 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51600557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25800275 + 25800276.

It is an arithmetic number, because the mean of its divisors is an integer number (25800276).

Almost surely, 2^51600551 is an apocalyptic number.

51600551 is a deficient number, since it is larger than the sum of its proper divisors (1).

51600551 is an equidigital number, since it uses as much as digits as its factorization.

51600551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 51600551 is about 7183.3523510962. The cubic root of 51600551 is about 372.2929221545.

The spelling of 51600551 in words is "fifty-one million, six hundred thousand, five hundred fifty-one".