20756255454 has 32 divisors (see below), whose sum is σ = 50318196480. Its totient is φ = 6289774200.

The previous prime is 20756255431. The next prime is 20756255483. The reversal of 20756255454 is 45455265702.

20756255454 is a `hidden beast` number, since 20 + 75 + 6 + 2 + 554 + 5 + 4 = 666.

It is a super-2 number, since 2×20756255454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17471002 + ... + 17472189.

It is an arithmetic number, because the mean of its divisors is an integer number (1572443640).

Almost surely, 2^20756255454 is an apocalyptic number.

20756255454 is an abundant number, since it is smaller than the sum of its proper divisors (29561941026).

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

20756255454 is a wasteful number, since it uses less digits than its factorization.

20756255454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34943213 (or 34943207 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 45.

The spelling of 20756255454 in words is "twenty billion, seven hundred fifty-six million, two hundred fifty-five thousand, four hundred fifty-four".