538907725 has 12 divisors (see below), whose sum is σ = 691289460. Its totient is φ = 416259200.

The previous prime is 538907717. The next prime is 538907729. The reversal of 538907725 is 527709835.

It can be written as a sum of positive squares in 6 ways, for example, as 19660356 + 519247369 = 4434^2 + 22787^2 .

It is not a de Polignac number, because 538907725 - 2³ = 538907717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538907729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370936 + ... + 372385.

It is an arithmetic number, because the mean of its divisors is an integer number (57607455).

Almost surely, 2^538907725 is an apocalyptic number.

It is an amenable number.

538907725 is a deficient number, since it is larger than the sum of its proper divisors (152381735).

538907725 is a wasteful number, since it uses less digits than its factorization.

538907725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743360 (or 743355 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 538907725 is about 23214.3861646178. The cubic root of 538907725 is about 813.7758605691.

The spelling of 538907725 in words is "five hundred thirty-eight million, nine hundred seven thousand, seven hundred twenty-five".