1355550461 has 2 divisors, whose sum is σ = 1355550462. Its totient is φ = 1355550460.

The previous prime is 1355550457. The next prime is 1355550467. The reversal of 1355550461 is 1640555531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1019524900 + 336025561 = 31930^2 + 18331^2 .

It is an emirp because it is prime and its reverse (1640555531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1355550461 - 2² = 1355550457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355550467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677775230 + 677775231.

It is an arithmetic number, because the mean of its divisors is an integer number (677775231).

Almost surely, 2^1355550461 is an apocalyptic number.

It is an amenable number.

1355550461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355550461 is an equidigital number, since it uses as much as digits as its factorization.

1355550461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 1355550461 is about 36817.8008713177. The cubic root of 1355550461 is about 1106.7220505721.

The spelling of 1355550461 in words is "one billion, three hundred fifty-five million, five hundred fifty thousand, four hundred sixty-one".