59517421 has 2 divisors, whose sum is σ = 59517422. Its totient is φ = 59517420.

The previous prime is 59517397. The next prime is 59517449. The reversal of 59517421 is 12471595.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30680521 + 28836900 = 5539^2 + 5370^2 .

It is a cyclic number.

It is not a de Polignac number, because 59517421 - 2⁹ = 59516909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (59512421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29758710 + 29758711.

It is an arithmetic number, because the mean of its divisors is an integer number (29758711).

Almost surely, 2^59517421 is an apocalyptic number.

It is an amenable number.

59517421 is a deficient number, since it is larger than the sum of its proper divisors (1).

59517421 is an equidigital number, since it uses as much as digits as its factorization.

59517421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 59517421 is about 7714.7534633324. The cubic root of 59517421 is about 390.4343637343.

The spelling of 59517421 in words is "fifty-nine million, five hundred seventeen thousand, four hundred twenty-one".