126551560 has 32 divisors (see below), whose sum is σ = 285143040. Its totient is φ = 50549184.

The previous prime is 126551539. The next prime is 126551567. The reversal of 126551560 is 65155621.

It is not an unprimeable number, because it can be changed into a prime (126551567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33529 + ... + 37111.

It is an arithmetic number, because the mean of its divisors is an integer number (8910720).

Almost surely, 2^126551560 is an apocalyptic number.

126551560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126551560 is an abundant number, since it is smaller than the sum of its proper divisors (158591480).

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

126551560 is a wasteful number, since it uses less digits than its factorization.

126551560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 126551560 is about 11249.5137672701. The cubic root of 126551560 is about 502.0602457814.

It can be divided in two parts, 1265 and 51560, that added together give a palindrome (52825).

The spelling of 126551560 in words is "one hundred twenty-six million, five hundred fifty-one thousand, five hundred sixty".