95515621 has 2 divisors, whose sum is σ = 95515622. Its totient is φ = 95515620.

The previous prime is 95515579. The next prime is 95515643. The reversal of 95515621 is 12651559.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86694721 + 8820900 = 9311^2 + 2970^2 .

It is an emirp because it is prime and its reverse (12651559) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 95515621 - 2⁷ = 95515493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (95515921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47757810 + 47757811.

It is an arithmetic number, because the mean of its divisors is an integer number (47757811).

Almost surely, 2^95515621 is an apocalyptic number.

It is an amenable number.

95515621 is a deficient number, since it is larger than the sum of its proper divisors (1).

95515621 is an equidigital number, since it uses as much as digits as its factorization.

95515621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 34.

The square root of 95515621 is about 9773.2093500549. The cubic root of 95515621 is about 457.1142932441.

The spelling of 95515621 in words is "ninety-five million, five hundred fifteen thousand, six hundred twenty-one".