1551264980 has 18 divisors (see below), whose sum is σ = 3258026394. Its totient is φ = 620435536.

The previous prime is 1551264973. The next prime is 1551264983. The reversal of 1551264980 is 894621551.

It can be written as a sum of positive squares in only one way, i.e., 1241011984 + 310252996 = 35228^2 + 17614^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551264983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171737 + ... + 180543.

Almost surely, 2^1551264980 is an apocalyptic number.

1551264980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551264980 is an abundant number, since it is smaller than the sum of its proper divisors (1706761414).

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

1551264980 is an frugal number, since it uses more digits than its factorization.

1551264980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17623 (or 8814 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1551264980 is about 39386.1013556813. The cubic root of 1551264980 is about 1157.6092705660.

The spelling of 1551264980 in words is "one billion, five hundred fifty-one million, two hundred sixty-four thousand, nine hundred eighty".