525141921 has 16 divisors (see below), whose sum is σ = 705989504. Its totient is φ = 347203584.

The previous prime is 525141901. The next prime is 525141923. The reversal of 525141921 is 129141525.

525141921 = T₃₁₈ + T₃₁₉ + ... + T₁₄₇₀.

It is a de Polignac number, because none of the positive numbers 2^k-525141921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525141923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454881 + ... + 456033.

It is an arithmetic number, because the mean of its divisors is an integer number (44124344).

Almost surely, 2^525141921 is an apocalyptic number.

It is an amenable number.

525141921 is a deficient number, since it is larger than the sum of its proper divisors (180847583).

525141921 is a wasteful number, since it uses less digits than its factorization.

525141921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280.

The product of its digits is 3600, while the sum is 30.

The square root of 525141921 is about 22915.9752356298. The cubic root of 525141921 is about 806.7870083383.

The spelling of 525141921 in words is "five hundred twenty-five million, one hundred forty-one thousand, nine hundred twenty-one".