2154625 has 16 divisors (see below), whose sum is σ = 2935296. Its totient is φ = 1566000.

The previous prime is 2154611. The next prime is 2154629. The reversal of 2154625 is 5264512.

It is not a de Polignac number, because 2154625 - 2¹³ = 2146433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2154625.

It is not an unprimeable number, because it can be changed into a prime (2154629) 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, 592 + ... + 2158.

It is an arithmetic number, because the mean of its divisors is an integer number (183456).

2^2154625 is an apocalyptic number.

2154625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154625 is a deficient number, since it is larger than the sum of its proper divisors (780671).

2154625 is a wasteful number, since it uses less digits than its factorization.

2154625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1583 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 2154625 is about 1467.8640945265. The cubic root of 2154625 is about 129.1587693171.

The spelling of 2154625 in words is "two million, one hundred fifty-four thousand, six hundred twenty-five".