15500041957 has 2 divisors, whose sum is σ = 15500041958. Its totient is φ = 15500041956.

The previous prime is 15500041933. The next prime is 15500041981. The reversal of 15500041957 is 75914000551.

It is a balanced prime because it is at equal distance from previous prime (15500041933) and next prime (15500041981).

It can be written as a sum of positive squares in only one way, i.e., 11967047236 + 3532994721 = 109394^2 + 59439^2 .

It is an emirp because it is prime and its reverse (75914000551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15500041957 - 2¹⁹ = 15499517669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15500041157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7750020978 + 7750020979.

It is an arithmetic number, because the mean of its divisors is an integer number (7750020979).

Almost surely, 2^15500041957 is an apocalyptic number.

It is an amenable number.

15500041957 is a deficient number, since it is larger than the sum of its proper divisors (1).

15500041957 is an equidigital number, since it uses as much as digits as its factorization.

15500041957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 15500041957 in words is "fifteen billion, five hundred million, forty-one thousand, nine hundred fifty-seven".