1550361541 has 2 divisors, whose sum is σ = 1550361542. Its totient is φ = 1550361540.

The previous prime is 1550361511. The next prime is 1550361559. The reversal of 1550361541 is 1451630551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1306533316 + 243828225 = 36146^2 + 15615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550361541 - 2²⁵ = 1516807109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550361511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775180770 + 775180771.

It is an arithmetic number, because the mean of its divisors is an integer number (775180771).

Almost surely, 2^1550361541 is an apocalyptic number.

It is an amenable number.

1550361541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550361541 is an equidigital number, since it uses as much as digits as its factorization.

1550361541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1550361541 is about 39374.6306776330. The cubic root of 1550361541 is about 1157.3845007884.

The spelling of 1550361541 in words is "one billion, five hundred fifty million, three hundred sixty-one thousand, five hundred forty-one".