1425555 has 24 divisors (see below), whose sum is σ = 2508480. Its totient is φ = 748800.

The previous prime is 1425547. The next prime is 1425583. The reversal of 1425555 is 5555241.

It is not a de Polignac number, because 1425555 - 2³ = 1425547 is a prime.

1425555 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3355 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (104520).

2^1425555 is an apocalyptic number.

1425555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1425555 is a deficient number, since it is larger than the sum of its proper divisors (1082925).

1425555 is a wasteful number, since it uses less digits than its factorization.

1425555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 488 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 1425555 is about 1193.9660799202. The cubic root of 1425555 is about 112.5454631066.

The spelling of 1425555 in words is "one million, four hundred twenty-five thousand, five hundred fifty-five".