72505070512252 has 12 divisors (see below), whose sum is σ = 145010141024560. Its totient is φ = 31073601648096.

The previous prime is 72505070512223. The next prime is 72505070512271. The reversal of 72505070512252 is 25221507050527.

72505070512252 is an admirable number.

It is a super-2 number, since 2×72505070512252² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72505070512199 and 72505070512208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294733401977 + ... + 1294733402032.

Almost surely, 2^{72505070512252} is an apocalyptic number.

It is an amenable number.

72505070512252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72505070512252 is a wasteful number, since it uses less digits than its factorization.

72505070512252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589466804020 (or 2589466804018 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 43.

Adding to 72505070512252 its reverse (25221507050527), we get a palindrome (97726577562779).

The spelling of 72505070512252 in words is "seventy-two trillion, five hundred five billion, seventy million, five hundred twelve thousand, two hundred fifty-two".