20562577552 has 20 divisors (see below), whose sum is σ = 43461812016. Its totient is φ = 9346626080.

The previous prime is 20562577531. The next prime is 20562577573. The reversal of 20562577552 is 25577526502.

It is an interprime number because it is at equal distance from previous prime (20562577531) and next prime (20562577573).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58416238 + ... + 58416589.

Almost surely, 2^20562577552 is an apocalyptic number.

20562577552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20562577552 is an abundant number, since it is smaller than the sum of its proper divisors (22899234464).

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

20562577552 is a wasteful number, since it uses less digits than its factorization.

20562577552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116832846 (or 116832840 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 46.

The spelling of 20562577552 in words is "twenty billion, five hundred sixty-two million, five hundred seventy-seven thousand, five hundred fifty-two".