1551120455 has 8 divisors (see below), whose sum is σ = 1861562304. Its totient is φ = 1240751200.

The previous prime is 1551120449. The next prime is 1551120463. The reversal of 1551120455 is 5540211551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1551120455 - 2¹⁶ = 1551054919 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 57650 + ... + 80160.

It is an arithmetic number, because the mean of its divisors is an integer number (232695288).

Almost surely, 2^1551120455 is an apocalyptic number.

1551120455 is a deficient number, since it is larger than the sum of its proper divisors (310441849).

1551120455 is a wasteful number, since it uses less digits than its factorization.

1551120455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36297.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 1551120455 is about 39384.2665921304. The cubic root of 1551120455 is about 1157.5733195458.

The spelling of 1551120455 in words is "one billion, five hundred fifty-one million, one hundred twenty thousand, four hundred fifty-five".