1551040512 has 272 divisors, whose sum is σ = 5033126400. Its totient is φ = 423886848.

The previous prime is 1551040501. The next prime is 1551040531. The reversal of 1551040512 is 2150401551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67436533 + ... + 67436555.

Almost surely, 2^1551040512 is an apocalyptic number.

1551040512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1551040512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516563200).

1551040512 is an abundant number, since it is smaller than the sum of its proper divisors (3482085888).

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

1551040512 is an frugal number, since it uses more digits than its factorization.

1551040512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1551040512 is about 39383.2516686980. The cubic root of 1551040512 is about 1157.5534325295.

The spelling of 1551040512 in words is "one billion, five hundred fifty-one million, forty thousand, five hundred twelve".