20325453534 has 24 divisors (see below), whose sum is σ = 45228713400. Its totient is φ = 6592038768.

The previous prime is 20325453493. The next prime is 20325453541. The reversal of 20325453534 is 43535452302.

20325453534 is a `hidden beast` number, since 20 + 3 + 2 + 54 + 53 + 534 = 666.

It is a super-2 number, since 2×20325453534² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15258684 + ... + 15260015.

It is an arithmetic number, because the mean of its divisors is an integer number (1884529725).

Almost surely, 2^20325453534 is an apocalyptic number.

20325453534 is an abundant number, since it is smaller than the sum of its proper divisors (24903259866).

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

20325453534 is a wasteful number, since it uses less digits than its factorization.

20325453534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30518744 (or 30518741 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

The spelling of 20325453534 in words is "twenty billion, three hundred twenty-five million, four hundred fifty-three thousand, five hundred thirty-four".