557240026 has 16 divisors (see below), whose sum is σ = 957660480. Its totient is φ = 238219200.

The previous prime is 557240023. The next prime is 557240027. The reversal of 557240026 is 620042755.

It is a self number, because there is not a number n which added to its sum of digits gives 557240026.

It is not an unprimeable number, because it can be changed into a prime (557240023) 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, 44016 + ... + 55243.

It is an arithmetic number, because the mean of its divisors is an integer number (59853780).

Almost surely, 2^557240026 is an apocalyptic number.

557240026 is a deficient number, since it is larger than the sum of its proper divisors (400420454).

557240026 is a wasteful number, since it uses less digits than its factorization.

557240026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99669.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 557240026 is about 23605.9320087134. The cubic root of 557240026 is about 822.9007053973.

The spelling of 557240026 in words is "five hundred fifty-seven million, two hundred forty thousand, twenty-six".