555252557 has 4 divisors (see below), whose sum is σ = 556239360. Its totient is φ = 554265756.

The previous prime is 555252553. The next prime is 555252571. The reversal of 555252557 is 755252555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 755252555 = 5 ⋅151050511.

It is a cyclic number.

It is not a de Polignac number, because 555252557 - 2² = 555252553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555252553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492557 + ... + 493682.

It is an arithmetic number, because the mean of its divisors is an integer number (139059840).

Almost surely, 2^555252557 is an apocalyptic number.

It is an amenable number.

555252557 is a deficient number, since it is larger than the sum of its proper divisors (986803).

555252557 is an equidigital number, since it uses as much as digits as its factorization.

555252557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986802.

The product of its digits is 437500, while the sum is 41.

The square root of 555252557 is about 23563.7975929178. The cubic root of 555252557 is about 821.9212125258.

The spelling of 555252557 in words is "five hundred fifty-five million, two hundred fifty-two thousand, five hundred fifty-seven".