2020249551 has 16 divisors (see below), whose sum is σ = 2870590464. Its totient is φ = 1260862944.

The previous prime is 2020249531. The next prime is 2020249573. The reversal of 2020249551 is 1559420202.

It is not a de Polignac number, because 2020249551 - 2⁶ = 2020249487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020249531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308236 + ... + 314721.

It is an arithmetic number, because the mean of its divisors is an integer number (179411904).

Almost surely, 2^2020249551 is an apocalyptic number.

2020249551 is a deficient number, since it is larger than the sum of its proper divisors (850340913).

2020249551 is a wasteful number, since it uses less digits than its factorization.

2020249551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623030.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2020249551 is about 44947.1862411876. The cubic root of 2020249551 is about 1264.1589186822.

Adding to 2020249551 its reverse (1559420202), we get a palindrome (3579669753).

It can be divided in two parts, 20202495 and 51, that added together give a triangular number (20202546 = T₆₃₅₆).

The spelling of 2020249551 in words is "two billion, twenty million, two hundred forty-nine thousand, five hundred fifty-one".