2525551 has 8 divisors (see below), whose sum is σ = 2923520. Its totient is φ = 2136888.

The previous prime is 2525531. The next prime is 2525557. The reversal of 2525551 is 1555252.

It is a happy number.

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 2525551 - 2¹¹ = 2523503 is a prime.

It is a Duffinian number.

2525551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525557) 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, 1731 + ... + 2836.

It is an arithmetic number, because the mean of its divisors is an integer number (365440).

2^2525551 is an apocalyptic number.

2525551 is a deficient number, since it is larger than the sum of its proper divisors (397969).

2525551 is an equidigital number, since it uses as much as digits as its factorization.

2525551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653.

The product of its digits is 2500, while the sum is 25.

The square root of 2525551 is about 1589.1982255213. The cubic root of 2525551 is about 136.1816883947.

Subtracting from 2525551 its reverse (1555252), we obtain a cube (970299 = 99³).

The spelling of 2525551 in words is "two million, five hundred twenty-five thousand, five hundred fifty-one".