557222397 has 8 divisors (see below), whose sum is σ = 743722944. Its totient is φ = 371101728.

The previous prime is 557222389. The next prime is 557222399. The reversal of 557222397 is 793222755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557222397 - 2³ = 557222389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557222399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91528 + ... + 97425.

It is an arithmetic number, because the mean of its divisors is an integer number (92965368).

Almost surely, 2^557222397 is an apocalyptic number.

It is an amenable number.

557222397 is a deficient number, since it is larger than the sum of its proper divisors (186500547).

557222397 is a wasteful number, since it uses less digits than its factorization.

557222397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189939.

The product of its digits is 264600, while the sum is 42.

The square root of 557222397 is about 23605.5586038543. The cubic root of 557222397 is about 822.8920274674.

The spelling of 557222397 in words is "five hundred fifty-seven million, two hundred twenty-two thousand, three hundred ninety-seven".