355242551 has 2 divisors, whose sum is σ = 355242552. Its totient is φ = 355242550.

The previous prime is 355242533. The next prime is 355242577. The reversal of 355242551 is 155242553.

It is a weak prime.

It is an emirp because it is prime and its reverse (155242553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355242551 - 2²⁶ = 288133687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355242581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177621275 + 177621276.

It is an arithmetic number, because the mean of its divisors is an integer number (177621276).

Almost surely, 2^355242551 is an apocalyptic number.

355242551 is a deficient number, since it is larger than the sum of its proper divisors (1).

355242551 is an equidigital number, since it uses as much as digits as its factorization.

355242551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30000, while the sum is 32.

The square root of 355242551 is about 18847.8792175672. The cubic root of 355242551 is about 708.2310994813.

The spelling of 355242551 in words is "three hundred fifty-five million, two hundred forty-two thousand, five hundred fifty-one".