525405201243452 has 24 divisors (see below), whose sum is σ = 921596198402880. Its totient is φ = 262092006702080.

The previous prime is 525405201243431. The next prime is 525405201243479. The reversal of 525405201243452 is 254342102504525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571717508 + ... + 572635764.

It is an arithmetic number, because the mean of its divisors is an integer number (38399841600120).

Almost surely, 2^{525405201243452} is an apocalyptic number.

It is an amenable number.

525405201243452 is a deficient number, since it is larger than the sum of its proper divisors (396190997159428).

525405201243452 is a wasteful number, since it uses less digits than its factorization.

525405201243452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250581 (or 1250579 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 44.

Adding to 525405201243452 its reverse (254342102504525), we get a palindrome (779747303747977).

The spelling of 525405201243452 in words is "five hundred twenty-five trillion, four hundred five billion, two hundred one million, two hundred forty-three thousand, four hundred fifty-two".