20532653090 has 16 divisors (see below), whose sum is σ = 37957662072. Its totient is φ = 7991086464.

The previous prime is 20532653059. The next prime is 20532653093. The reversal of 20532653090 is 9035623502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13490590201 + 7042062889 = 116149^2 + 83917^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20532653090.

It is not an unprimeable number, because it can be changed into a prime (20532653093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27746459 + ... + 27747198.

Almost surely, 2^20532653090 is an apocalyptic number.

20532653090 is a deficient number, since it is larger than the sum of its proper divisors (17425008982).

20532653090 is a wasteful number, since it uses less digits than its factorization.

20532653090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55493701.

The product of its (nonzero) digits is 48600, while the sum is 35.

The spelling of 20532653090 in words is "twenty billion, five hundred thirty-two million, six hundred fifty-three thousand, ninety".