6555557442 has 32 divisors (see below), whose sum is σ = 15865552512. Its totient is φ = 1762838784.

The previous prime is 6555557429. The next prime is 6555557443. The reversal of 6555557442 is 2447555556.

It is a junction number, because it is equal to n+sod(n) for n = 6555557391 and 6555557400.

It is not an unprimeable number, because it can be changed into a prime (6555557443) 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, 4590013 + ... + 4591440.

It is an arithmetic number, because the mean of its divisors is an integer number (495798516).

Almost surely, 2^6555557442 is an apocalyptic number.

6555557442 is an abundant number, since it is smaller than the sum of its proper divisors (9309995070).

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

6555557442 is a wasteful number, since it uses less digits than its factorization.

6555557442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181482.

The product of its digits is 4200000, while the sum is 48.

The square root of 6555557442 is about 80966.3969928266. The cubic root of 6555557442 is about 1871.5576488553.

The spelling of 6555557442 in words is "six billion, five hundred fifty-five million, five hundred fifty-seven thousand, four hundred forty-two".