20475954 has 12 divisors (see below), whose sum is σ = 44364606. Its totient is φ = 6825312.

The previous prime is 20475953. The next prime is 20475971. The reversal of 20475954 is 45957402.

20475954 is a `hidden beast` number, since 20 + 47 + 595 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 1159929 = 4395^2 + 1077^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20475953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568759 + ... + 568794.

Almost surely, 2^20475954 is an apocalyptic number.

20475954 is an abundant number, since it is smaller than the sum of its proper divisors (23888652).

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

20475954 is a wasteful number, since it uses less digits than its factorization.

20475954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137561 (or 1137558 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 20475954 is about 4525.0363534451. The cubic root of 20475954 is about 273.5781331914.

It can be divided in two parts, 2047 and 5954, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 20475954 in words is "twenty million, four hundred seventy-five thousand, nine hundred fifty-four".