210080557 has 4 divisors (see below), whose sum is σ = 210244576. Its totient is φ = 209916540.

The previous prime is 210080539. The next prime is 210080567. The reversal of 210080557 is 755080012.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210080557 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 (210080567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80073 + ... + 82654.

It is an arithmetic number, because the mean of its divisors is an integer number (52561144).

Almost surely, 2^210080557 is an apocalyptic number.

It is an amenable number.

210080557 is a deficient number, since it is larger than the sum of its proper divisors (164019).

210080557 is a wasteful number, since it uses less digits than its factorization.

210080557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164018.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 210080557 is about 14494.1559602483. The cubic root of 210080557 is about 594.4681894521.

The spelling of 210080557 in words is "two hundred ten million, eighty thousand, five hundred fifty-seven".