155950049 has 2 divisors, whose sum is σ = 155950050. Its totient is φ = 155950048.

The previous prime is 155950037. The next prime is 155950127. The reversal of 155950049 is 940059551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153933649 + 2016400 = 12407^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 155950049 - 2⁸ = 155949793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155949994 and 155950021.

It is not a weakly prime, because it can be changed into another prime (154950049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77975024 + 77975025.

It is an arithmetic number, because the mean of its divisors is an integer number (77975025).

Almost surely, 2^155950049 is an apocalyptic number.

It is an amenable number.

155950049 is a deficient number, since it is larger than the sum of its proper divisors (1).

155950049 is an equidigital number, since it uses as much as digits as its factorization.

155950049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 155950049 is about 12487.9961963479. The cubic root of 155950049 is about 538.2637984826.

The spelling of 155950049 in words is "one hundred fifty-five million, nine hundred fifty thousand, forty-nine".