2505471 has 8 divisors (see below), whose sum is σ = 3351600. Its totient is φ = 1664832.

The previous prime is 2505457. The next prime is 2505487. The reversal of 2505471 is 1745052.

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

It is not a de Polignac number, because 2505471 - 2⁶ = 2505407 is a prime.

It is a super-3 number, since 3×2505471³ = 47183417707693806333, which contains 333 as substring.

2505471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505401) 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, 150 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (418950).

2^2505471 is an apocalyptic number.

2505471 is a deficient number, since it is larger than the sum of its proper divisors (846129).

2505471 is a wasteful number, since it uses less digits than its factorization.

2505471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2505471 is about 1582.8679666984. The cubic root of 2505471 is about 135.8198125559.

The spelling of 2505471 in words is "two million, five hundred five thousand, four hundred seventy-one".