525250139 has 8 divisors (see below), whose sum is σ = 569712528. Its totient is φ = 482295040.

The previous prime is 525250127. The next prime is 525250147. The reversal of 525250139 is 931052525.

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 525250139 - 2⁴ = 525250123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525250109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376097 + ... + 377490.

It is an arithmetic number, because the mean of its divisors is an integer number (71214066).

Almost surely, 2^525250139 is an apocalyptic number.

525250139 is a deficient number, since it is larger than the sum of its proper divisors (44462389).

525250139 is a wasteful number, since it uses less digits than its factorization.

525250139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753645.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 525250139 is about 22918.3363052382. The cubic root of 525250139 is about 806.8424237580.

The spelling of 525250139 in words is "five hundred twenty-five million, two hundred fifty thousand, one hundred thirty-nine".