215501525332532 has 6 divisors (see below), whose sum is σ = 377127669331938. Its totient is φ = 107750762666264.

The previous prime is 215501525332477. The next prime is 215501525332537. The reversal of 215501525332532 is 235233525105512.

It can be written as a sum of positive squares in only one way, i.e., 201008992039696 + 14492533292836 = 14177764^2 + 3806906^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215501525332537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26937690666563 + ... + 26937690666570.

It is an arithmetic number, because the mean of its divisors is an integer number (62854611555323).

Almost surely, 2^{215501525332532} is an apocalyptic number.

It is an amenable number.

215501525332532 is a deficient number, since it is larger than the sum of its proper divisors (161626143999406).

215501525332532 is a wasteful number, since it uses less digits than its factorization.

215501525332532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53875381333137 (or 53875381333135 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 215501525332532 in words is "two hundred fifteen trillion, five hundred one billion, five hundred twenty-five million, three hundred thirty-two thousand, five hundred thirty-two".