51552419 has 2 divisors, whose sum is σ = 51552420. Its totient is φ = 51552418.

The previous prime is 51552383. The next prime is 51552421. The reversal of 51552419 is 91425515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51552419 - 2¹² = 51548323 is a prime.

It is a super-2 number, since 2×51552419² = 5315303809503122, which contains 22 as substring.

Together with 51552421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51552439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776209 + 25776210.

It is an arithmetic number, because the mean of its divisors is an integer number (25776210).

Almost surely, 2^51552419 is an apocalyptic number.

51552419 is a deficient number, since it is larger than the sum of its proper divisors (1).

51552419 is an equidigital number, since it uses as much as digits as its factorization.

51552419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 32.

The square root of 51552419 is about 7180.0013231197. The cubic root of 51552419 is about 372.1771302554.

The spelling of 51552419 in words is "fifty-one million, five hundred fifty-two thousand, four hundred nineteen".