2425661 has 8 divisors (see below), whose sum is σ = 2787840. Its totient is φ = 2067408.

The previous prime is 2425637. The next prime is 2425663. The reversal of 2425661 is 1665242.

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

It is a de Polignac number, because none of the positive numbers 2^k-2425661 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 2425661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2425663) 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, 500 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (348480).

2^2425661 is an apocalyptic number.

It is an amenable number.

2425661 is a deficient number, since it is larger than the sum of its proper divisors (362179).

2425661 is a wasteful number, since it uses less digits than its factorization.

2425661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 2880, while the sum is 26.

The square root of 2425661 is about 1557.4533700885. The cubic root of 2425661 is about 134.3620749061.

The spelling of 2425661 in words is "two million, four hundred twenty-five thousand, six hundred sixty-one".