1550650001 has 2 divisors, whose sum is σ = 1550650002. Its totient is φ = 1550650000.

The previous prime is 1550649979. The next prime is 1550650007. The reversal of 1550650001 is 1000560551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1550469376 + 180625 = 39376^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550650001 - 2²² = 1546455697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1550650007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775325000 + 775325001.

It is an arithmetic number, because the mean of its divisors is an integer number (775325001).

Almost surely, 2^1550650001 is an apocalyptic number.

It is an amenable number.

1550650001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550650001 is an equidigital number, since it uses as much as digits as its factorization.

1550650001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1550650001 is about 39378.2935257484. The cubic root of 1550650001 is about 1157.4562772569.

The spelling of 1550650001 in words is "one billion, five hundred fifty million, six hundred fifty thousand, one".