20540526 has 32 divisors (see below), whose sum is σ = 42971040. Its totient is φ = 6537216.

The previous prime is 20540519. The next prime is 20540537. The reversal of 20540526 is 62504502.

It is a junction number, because it is equal to n+sod(n) for n = 20540496 and 20540505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16270 + ... + 17486.

It is an arithmetic number, because the mean of its divisors is an integer number (1342845).

Almost surely, 2^20540526 is an apocalyptic number.

20540526 is an abundant number, since it is smaller than the sum of its proper divisors (22430514).

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

20540526 is a wasteful number, since it uses less digits than its factorization.

20540526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20540526 is about 4532.1657074736. The cubic root of 20540526 is about 273.8654124393.

The spelling of 20540526 in words is "twenty million, five hundred forty thousand, five hundred twenty-six".