25573473 has 6 divisors (see below), whose sum is σ = 36939474. Its totient is φ = 17048976.

The previous prime is 25573451. The next prime is 25573489. The reversal of 25573473 is 37437552.

25573473 is a `hidden beast` number, since 2 + 557 + 34 + 73 = 666.

25573473 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 16136289 + 9437184 = 4017^2 + 3072^2 .

It is not a de Polignac number, because 25573473 - 2⁵ = 25573441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25573073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420740 + ... + 1420757.

It is an arithmetic number, because the mean of its divisors is an integer number (6156579).

Almost surely, 2^25573473 is an apocalyptic number.

It is an amenable number.

25573473 is a deficient number, since it is larger than the sum of its proper divisors (11366001).

25573473 is a wasteful number, since it uses less digits than its factorization.

25573473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841503 (or 2841500 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 25573473 is about 5057.0221474698. The cubic root of 25573473 is about 294.6206864766.

The spelling of 25573473 in words is "twenty-five million, five hundred seventy-three thousand, four hundred seventy-three".