20146552 has 8 divisors (see below), whose sum is σ = 37774800. Its totient is φ = 10073272.

The previous prime is 20146543. The next prime is 20146573. The reversal of 20146552 is 25564102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259152 + ... + 1259167.

It is an arithmetic number, because the mean of its divisors is an integer number (4721850).

Almost surely, 2^20146552 is an apocalyptic number.

It is an amenable number.

20146552 is a deficient number, since it is larger than the sum of its proper divisors (17628248).

20146552 is a wasteful number, since it uses less digits than its factorization.

20146552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518325 (or 2518321 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20146552 is about 4488.4910604790. The cubic root of 20146552 is about 272.1031543577.

The spelling of 20146552 in words is "twenty million, one hundred forty-six thousand, five hundred fifty-two".