537121555312552 has 32 divisors (see below), whose sum is σ = 1150976652336000. Its totient is φ = 230194574086464.

The previous prime is 537121555312499. The next prime is 537121555312553. The reversal of 537121555312552 is 255213555121735.

It is a super-2 number, since 2×537121555312552² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 537121555312552.

It is not an unprimeable number, because it can be changed into a prime (537121555312553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27953278 + ... + 43077010.

It is an arithmetic number, because the mean of its divisors is an integer number (35968020385500).

Almost surely, 2^{537121555312552} is an apocalyptic number.

It is an amenable number.

537121555312552 is an abundant number, since it is smaller than the sum of its proper divisors (613855097023448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

537121555312552 is a wasteful number, since it uses less digits than its factorization.

537121555312552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15757945 (or 15757941 counting only the distinct ones).

The product of its digits is 7875000, while the sum is 52.

The spelling of 537121555312552 in words is "five hundred thirty-seven trillion, one hundred twenty-one billion, five hundred fifty-five million, three hundred twelve thousand, five hundred fifty-two".