58761521257 has 2 divisors, whose sum is σ = 58761521258. Its totient is φ = 58761521256.

The previous prime is 58761521219. The next prime is 58761521281. The reversal of 58761521257 is 75212516785.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31490631936 + 27270889321 = 177456^2 + 165139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58761521257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 58761521257.

It is not a weakly prime, because it can be changed into another prime (58761522257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29380760628 + 29380760629.

It is an arithmetic number, because the mean of its divisors is an integer number (29380760629).

Almost surely, 2^58761521257 is an apocalyptic number.

It is an amenable number.

58761521257 is a deficient number, since it is larger than the sum of its proper divisors (1).

58761521257 is an equidigital number, since it uses as much as digits as its factorization.

58761521257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176000, while the sum is 49.

The spelling of 58761521257 in words is "fifty-eight billion, seven hundred sixty-one million, five hundred twenty-one thousand, two hundred fifty-seven".