1825508161 has 8 divisors (see below), whose sum is σ = 1933892064. Its totient is φ = 1717235520.

The previous prime is 1825508131. The next prime is 1825508173. The reversal of 1825508161 is 1618055281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1825508161 - 2²³ = 1817119553 is a prime.

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 1825508161.

It is not an unprimeable number, because it can be changed into a prime (1825508101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7246 + ... + 60856.

It is an arithmetic number, because the mean of its divisors is an integer number (241736508).

Almost surely, 2^1825508161 is an apocalyptic number.

It is an amenable number.

1825508161 is a deficient number, since it is larger than the sum of its proper divisors (108383903).

1825508161 is a wasteful number, since it uses less digits than its factorization.

1825508161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55631.

The product of its (nonzero) digits is 19200, while the sum is 37.

The square root of 1825508161 is about 42725.9658872681. The cubic root of 1825508161 is about 1222.1596078633.

The spelling of 1825508161 in words is "one billion, eight hundred twenty-five million, five hundred eight thousand, one hundred sixty-one".