538625515 has 8 divisors (see below), whose sum is σ = 646475760. Its totient is φ = 430816992.

The previous prime is 538625491. The next prime is 538625519. The reversal of 538625515 is 515526835.

538625515 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 538625515 - 2⁷ = 538625387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538625519) 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, 41377 + ... + 52813.

It is an arithmetic number, because the mean of its divisors is an integer number (80809470).

Almost surely, 2^538625515 is an apocalyptic number.

538625515 is a deficient number, since it is larger than the sum of its proper divisors (107850245).

538625515 is a wasteful number, since it uses less digits than its factorization.

538625515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20861.

The product of its digits is 180000, while the sum is 40.

The square root of 538625515 is about 23208.3070257182. The cubic root of 538625515 is about 813.6337856679.

The spelling of 538625515 in words is "five hundred thirty-eight million, six hundred twenty-five thousand, five hundred fifteen".