1915055951 has 2 divisors, whose sum is σ = 1915055952. Its totient is φ = 1915055950.

The previous prime is 1915055927. The next prime is 1915056019. The reversal of 1915055951 is 1595505191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1915055951 - 2⁶ = 1915055887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1915055899 and 1915055908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1915055251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957527975 + 957527976.

It is an arithmetic number, because the mean of its divisors is an integer number (957527976).

Almost surely, 2^1915055951 is an apocalyptic number.

1915055951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1915055951 is an equidigital number, since it uses as much as digits as its factorization.

1915055951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50625, while the sum is 41.

The square root of 1915055951 is about 43761.3522528726. The cubic root of 1915055951 is about 1241.8252583001.

The spelling of 1915055951 in words is "one billion, nine hundred fifteen million, fifty-five thousand, nine hundred fifty-one".