2564925 has 24 divisors (see below), whose sum is σ = 4627680. Its totient is φ = 1243200.

The previous prime is 2564921. The next prime is 2564957. The reversal of 2564925 is 5294652.

It is not a de Polignac number, because 2564925 - 2² = 2564921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

2564925 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 730 + ... + 2379.

It is an arithmetic number, because the mean of its divisors is an integer number (192820).

2^2564925 is an apocalyptic number.

2564925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2564925 is a deficient number, since it is larger than the sum of its proper divisors (2062755).

2564925 is a wasteful number, since it uses less digits than its factorization.

2564925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133 (or 3128 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 2564925 is about 1601.5383229882. The cubic root of 2564925 is about 136.8857448665.

The spelling of 2564925 in words is "two million, five hundred sixty-four thousand, nine hundred twenty-five".