12551980 has 24 divisors (see below), whose sum is σ = 30125088. Its totient is φ = 4303488.

The previous prime is 12551971. The next prime is 12552011. The reversal of 12551980 is 8915521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44689 + ... + 44968.

It is an arithmetic number, because the mean of its divisors is an integer number (1255212).

Almost surely, 2^12551980 is an apocalyptic number.

12551980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12551980 is an abundant number, since it is smaller than the sum of its proper divisors (17573108).

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

12551980 is a wasteful number, since it uses less digits than its factorization.

12551980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89673 (or 89671 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 12551980 is about 3542.8773616935. The cubic root of 12551980 is about 232.4006898486.

It can be divided in two parts, 12551 and 980, that added together give a palindrome (13531).

The spelling of 12551980 in words is "twelve million, five hundred fifty-one thousand, nine hundred eighty".