1555125 has 64 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 672000.

The previous prime is 1555123. The next prime is 1555129. The reversal of 1555125 is 5215551.

It is not a de Polignac number, because 1555125 - 2¹ = 1555123 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1555095 and 1555104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53611 + ... + 53639.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2^1555125 is an apocalyptic number.

1555125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1555125 is an abundant number, since it is smaller than the sum of its proper divisors (1589835).

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

1555125 is a wasteful number, since it uses less digits than its factorization.

1555125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 61 counting only the distinct ones).

The product of its digits is 1250, while the sum is 24.

The square root of 1555125 is about 1247.0465107605. The cubic root of 1555125 is about 115.8568636818.

It can be divided in two parts, 15551 and 25, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 1555125 in words is "one million, five hundred fifty-five thousand, one hundred twenty-five".