20061552 has 40 divisors (see below), whose sum is σ = 59230336. Its totient is φ = 5731776.

The previous prime is 20061539. The next prime is 20061553. The reversal of 20061552 is 25516002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20061553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29518 + ... + 30189.

Almost surely, 2^20061552 is an apocalyptic number.

It is an amenable number.

20061552 is an abundant number, since it is smaller than the sum of its proper divisors (39168784).

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

20061552 is a wasteful number, since it uses less digits than its factorization.

20061552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59725 (or 59719 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 20061552 is about 4479.0123911416. The cubic root of 20061552 is about 271.7199395362.

Adding to 20061552 its reverse (25516002), we get a palindrome (45577554).

The spelling of 20061552 in words is "twenty million, sixty-one thousand, five hundred fifty-two".