1662525172 has 48 divisors (see below), whose sum is σ = 3704537088. Its totient is φ = 633949920.

The previous prime is 1662525167. The next prime is 1662525173. The reversal of 1662525172 is 2715252661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662525173) 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, 42948 + ... + 71899.

It is an arithmetic number, because the mean of its divisors is an integer number (77177856).

Almost surely, 2^1662525172 is an apocalyptic number.

It is an amenable number.

1662525172 is an abundant number, since it is smaller than the sum of its proper divisors (2042011916).

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

1662525172 is a wasteful number, since it uses less digits than its factorization.

1662525172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114916 (or 114914 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 1662525172 is about 40774.0747534509. The cubic root of 1662525172 is about 1184.6482299584.

The spelling of 1662525172 in words is "one billion, six hundred sixty-two million, five hundred twenty-five thousand, one hundred seventy-two".