51474481 has 2 divisors, whose sum is σ = 51474482. Its totient is φ = 51474480.

The previous prime is 51474463. The next prime is 51474499. The reversal of 51474481 is 18447415.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (51474463) and next prime (51474499).

It can be written as a sum of positive squares in only one way, i.e., 36108081 + 15366400 = 6009^2 + 3920^2 .

It is a cyclic number.

It is not a de Polignac number, because 51474481 - 2⁹ = 51473969 is a prime.

It is a super-2 number, since 2×51474481² = 5299244388438722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51474431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25737240 + 25737241.

It is an arithmetic number, because the mean of its divisors is an integer number (25737241).

Almost surely, 2^51474481 is an apocalyptic number.

It is an amenable number.

51474481 is a deficient number, since it is larger than the sum of its proper divisors (1).

51474481 is an equidigital number, since it uses as much as digits as its factorization.

51474481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 34.

The square root of 51474481 is about 7174.5718339146. The cubic root of 51474481 is about 371.9894806637.

The spelling of 51474481 in words is "fifty-one million, four hundred seventy-four thousand, four hundred eighty-one".