51970469 has 2 divisors, whose sum is σ = 51970470. Its totient is φ = 51970468.

The previous prime is 51970447. The next prime is 51970511. The reversal of 51970469 is 96407915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29833444 + 22137025 = 5462^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 51970469 - 2¹⁶ = 51904933 is a prime.

It is a super-2 number, since 2×51970469² = 5401859296159922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51970439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25985234 + 25985235.

It is an arithmetic number, because the mean of its divisors is an integer number (25985235).

Almost surely, 2^51970469 is an apocalyptic number.

It is an amenable number.

51970469 is a deficient number, since it is larger than the sum of its proper divisors (1).

51970469 is an equidigital number, since it uses as much as digits as its factorization.

51970469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 51970469 is about 7209.0546536977. The cubic root of 51970469 is about 373.1804453873.

The spelling of 51970469 in words is "fifty-one million, nine hundred seventy thousand, four hundred sixty-nine".