155050457 has 2 divisors, whose sum is σ = 155050458. Its totient is φ = 155050456.

The previous prime is 155050411. The next prime is 155050459. The reversal of 155050457 is 754050551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140754496 + 14295961 = 11864^2 + 3781^2 .

It is a cyclic number.

It is not a de Polignac number, because 155050457 - 2¹⁴ = 155034073 is a prime.

Together with 155050459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155050459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77525228 + 77525229.

It is an arithmetic number, because the mean of its divisors is an integer number (77525229).

Almost surely, 2^155050457 is an apocalyptic number.

It is an amenable number.

155050457 is a deficient number, since it is larger than the sum of its proper divisors (1).

155050457 is an equidigital number, since it uses as much as digits as its factorization.

155050457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 155050457 is about 12451.9258349863. The cubic root of 155050457 is about 537.2268171553.

The spelling of 155050457 in words is "one hundred fifty-five million, fifty thousand, four hundred fifty-seven".