556123722 has 32 divisors (see below), whose sum is σ = 1386699264. Its totient is φ = 144447600.

The previous prime is 556123721. The next prime is 556123723. The reversal of 556123722 is 227321655.

It is an interprime number because it is at equal distance from previous prime (556123721) and next prime (556123723).

It is a super-2 number, since 2×556123722² = 618547188342266568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (556123721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601404 + ... + 602327.

It is an arithmetic number, because the mean of its divisors is an integer number (43334352).

Almost surely, 2^556123722 is an apocalyptic number.

556123722 is an abundant number, since it is smaller than the sum of its proper divisors (830575542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556123722 is a wasteful number, since it uses less digits than its factorization.

556123722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203754.

The product of its digits is 25200, while the sum is 33.

The square root of 556123722 is about 23582.2755899425. The cubic root of 556123722 is about 822.3508397518.

The spelling of 556123722 in words is "five hundred fifty-six million, one hundred twenty-three thousand, seven hundred twenty-two".