1625054 has 4 divisors (see below), whose sum is σ = 2437584. Its totient is φ = 812526.

The previous prime is 1625027. The next prime is 1625059. The reversal of 1625054 is 4505261.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406262 + ... + 406265.

It is an arithmetic number, because the mean of its divisors is an integer number (609396).

2^1625054 is an apocalyptic number.

1625054 is a deficient number, since it is larger than the sum of its proper divisors (812530).

1625054 is an equidigital number, since it uses as much as digits as its factorization.

1625054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812529.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1625054 is about 1274.7760587648. The cubic root of 1625054 is about 117.5680366493.

The spelling of 1625054 in words is "one million, six hundred twenty-five thousand, fifty-four".