1955253 has 16 divisors (see below), whose sum is σ = 2787840. Its totient is φ = 1215984.

The previous prime is 1955251. The next prime is 1955279. The reversal of 1955253 is 3525591.

1955253 is a nontrivial binomial coefficient, being equal to C(1978, 2).

It is not a de Polignac number, because 1955253 - 2¹ = 1955251 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1955253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955251) 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, 2638 + ... + 3296.

It is an arithmetic number, because the mean of its divisors is an integer number (174240).

2^1955253 is an apocalyptic number.

1955253 is the 1977-th triangular number and also the 989-th hexagonal number.

It is an amenable number.

1955253 is a deficient number, since it is larger than the sum of its proper divisors (832587).

1955253 is a wasteful number, since it uses less digits than its factorization.

1955253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 6750, while the sum is 30.

The square root of 1955253 is about 1398.3036150994. The cubic root of 1955253 is about 125.0453808560.

The spelling of 1955253 in words is "one million, nine hundred fifty-five thousand, two hundred fifty-three".