5725138 has 4 divisors (see below), whose sum is σ = 8587710. Its totient is φ = 2862568.

The previous prime is 5725133. The next prime is 5725157. The reversal of 5725138 is 8315275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3250809 + 2474329 = 1803^2 + 1573^2 .

It is not an unprimeable number, because it can be changed into a prime (5725133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1431283 + ... + 1431286.

Almost surely, 2^5725138 is an apocalyptic number.

5725138 is a deficient number, since it is larger than the sum of its proper divisors (2862572).

5725138 is a wasteful number, since it uses less digits than its factorization.

5725138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862571.

The product of its digits is 8400, while the sum is 31.

The square root of 5725138 is about 2392.7260603755. The cubic root of 5725138 is about 178.8938125746.

The spelling of 5725138 in words is "five million, seven hundred twenty-five thousand, one hundred thirty-eight".