1455455551 has 8 divisors (see below), whose sum is σ = 1603491408. Its totient is φ = 1310040000.

The previous prime is 1455455513. The next prime is 1455455557. The reversal of 1455455551 is 1555545541.

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

It is a cyclic number.

It is not a de Polignac number, because 1455455551 - 2⁹ = 1455455039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455455557) 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, 653910 + ... + 656131.

It is an arithmetic number, because the mean of its divisors is an integer number (200436426).

Almost surely, 2^1455455551 is an apocalyptic number.

1455455551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1455455551 is a deficient number, since it is larger than the sum of its proper divisors (148035857).

1455455551 is a wasteful number, since it uses less digits than its factorization.

1455455551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310153.

The product of its digits is 250000, while the sum is 40.

The square root of 1455455551 is about 38150.4331692315. The cubic root of 1455455551 is about 1133.2689301830.

The spelling of 1455455551 in words is "one billion, four hundred fifty-five million, four hundred fifty-five thousand, five hundred fifty-one".