1521950051 has 2 divisors, whose sum is σ = 1521950052. Its totient is φ = 1521950050.

The previous prime is 1521950047. The next prime is 1521950069. The reversal of 1521950051 is 1500591251.

It is a weak prime.

It is an emirp because it is prime and its reverse (1500591251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1521950051 - 2² = 1521950047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1521949996 and 1521950023.

It is not a weakly prime, because it can be changed into another prime (1521950011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760975025 + 760975026.

It is an arithmetic number, because the mean of its divisors is an integer number (760975026).

Almost surely, 2^1521950051 is an apocalyptic number.

1521950051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521950051 is an equidigital number, since it uses as much as digits as its factorization.

1521950051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 29.

The square root of 1521950051 is about 39012.1782396215. The cubic root of 1521950051 is about 1150.2709005154.

The spelling of 1521950051 in words is "one billion, five hundred twenty-one million, nine hundred fifty thousand, fifty-one".