275550487 has 2 divisors, whose sum is σ = 275550488. Its totient is φ = 275550486.

The previous prime is 275550479. The next prime is 275550529. The reversal of 275550487 is 784055572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275550487 - 2³ = 275550479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275550427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137775243 + 137775244.

It is an arithmetic number, because the mean of its divisors is an integer number (137775244).

Almost surely, 2^275550487 is an apocalyptic number.

275550487 is a deficient number, since it is larger than the sum of its proper divisors (1).

275550487 is an equidigital number, since it uses as much as digits as its factorization.

275550487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392000, while the sum is 43.

The square root of 275550487 is about 16599.7134613824. The cubic root of 275550487 is about 650.7293485687.

The spelling of 275550487 in words is "two hundred seventy-five million, five hundred fifty thousand, four hundred eighty-seven".