51480293 has 2 divisors, whose sum is σ = 51480294. Its totient is φ = 51480292.

The previous prime is 51480287. The next prime is 51480311. The reversal of 51480293 is 39208415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31561924 + 19918369 = 5618^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 51480293 - 2²² = 47285989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51480203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25740146 + 25740147.

It is an arithmetic number, because the mean of its divisors is an integer number (25740147).

Almost surely, 2^51480293 is an apocalyptic number.

It is an amenable number.

51480293 is a deficient number, since it is larger than the sum of its proper divisors (1).

51480293 is an equidigital number, since it uses as much as digits as its factorization.

51480293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 51480293 is about 7174.9768640742. The cubic root of 51480293 is about 372.0034806203.

The spelling of 51480293 in words is "fifty-one million, four hundred eighty thousand, two hundred ninety-three".