537501364220525 has 6 divisors (see below), whose sum is σ = 666501691633482. Its totient is φ = 430001091376400.

The previous prime is 537501364220501. The next prime is 537501364220539. The reversal of 537501364220525 is 525022463105735.

It can be written as a sum of positive squares in 3 ways, for example, as 46472061629764 + 491029302590761 = 6817042^2 + 22159181^2 .

It is not a de Polignac number, because 537501364220525 - 2⁸ = 537501364220269 is a prime.

It is a super-4 number, since 4×537501364220525⁴ (a number of 60 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10750027284386 + ... + 10750027284435.

It is an arithmetic number, because the mean of its divisors is an integer number (111083615272247).

Almost surely, 2^{537501364220525} is an apocalyptic number.

It is an amenable number.

537501364220525 is a deficient number, since it is larger than the sum of its proper divisors (129000327412957).

537501364220525 is a wasteful number, since it uses less digits than its factorization.

537501364220525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21500054568831 (or 21500054568826 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 50.

The spelling of 537501364220525 in words is "five hundred thirty-seven trillion, five hundred one billion, three hundred sixty-four million, two hundred twenty thousand, five hundred twenty-five".