6425554 has 4 divisors (see below), whose sum is σ = 9638334. Its totient is φ = 3212776.

The previous prime is 6425543. The next prime is 6425567. The reversal of 6425554 is 4555246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6365529 + 60025 = 2523^2 + 245^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606387 + ... + 1606390.

Almost surely, 2^6425554 is an apocalyptic number.

6425554 is a deficient number, since it is larger than the sum of its proper divisors (3212780).

6425554 is a wasteful number, since it uses less digits than its factorization.

6425554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212779.

The product of its digits is 24000, while the sum is 31.

The square root of 6425554 is about 2534.8676494050. The cubic root of 6425554 is about 185.9103317742.

The spelling of 6425554 in words is "six million, four hundred twenty-five thousand, five hundred fifty-four".