1355550457 has 2 divisors, whose sum is σ = 1355550458. Its totient is φ = 1355550456.

The previous prime is 1355550431. The next prime is 1355550461. The reversal of 1355550457 is 7540555531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1353430521 + 2119936 = 36789^2 + 1456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355550457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1355550407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677775228 + 677775229.

It is an arithmetic number, because the mean of its divisors is an integer number (677775229).

Almost surely, 2^1355550457 is an apocalyptic number.

It is an amenable number.

1355550457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355550457 is an equidigital number, since it uses as much as digits as its factorization.

1355550457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262500, while the sum is 40.

The square root of 1355550457 is about 36817.8008169961. The cubic root of 1355550457 is about 1106.7220494835.

The spelling of 1355550457 in words is "one billion, three hundred fifty-five million, five hundred fifty thousand, four hundred fifty-seven".