425548538 has 4 divisors (see below), whose sum is σ = 638322810. Its totient is φ = 212774268.

The previous prime is 425548537. The next prime is 425548579. The reversal of 425548538 is 835845524.

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., 423824569 + 1723969 = 20587^2 + 1313^2 .

It is not an unprimeable number, because it can be changed into a prime (425548537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106387133 + ... + 106387136.

Almost surely, 2^425548538 is an apocalyptic number.

425548538 is a deficient number, since it is larger than the sum of its proper divisors (212774272).

425548538 is a wasteful number, since it uses less digits than its factorization.

425548538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212774271.

The product of its digits is 768000, while the sum is 44.

The square root of 425548538 is about 20628.8278387309. The cubic root of 425548538 is about 752.1706232068.

The spelling of 425548538 in words is "four hundred twenty-five million, five hundred forty-eight thousand, five hundred thirty-eight".