450433025155551 has 4 divisors (see below), whose sum is σ = 600577366874072. Its totient is φ = 300288683437032.

The previous prime is 450433025155513. The next prime is 450433025155579. The reversal of 450433025155551 is 155551520334054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 450433025155551 - 2⁹ = 450433025155039 is a prime.

It is a super-2 number, since 2×450433025155551² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450433025155551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450433025155951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75072170859256 + ... + 75072170859261.

It is an arithmetic number, because the mean of its divisors is an integer number (150144341718518).

Almost surely, 2^{450433025155551} is an apocalyptic number.

450433025155551 is a deficient number, since it is larger than the sum of its proper divisors (150144341718521).

450433025155551 is a wasteful number, since it uses less digits than its factorization.

450433025155551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150144341718520.

The product of its (nonzero) digits is 4500000, while the sum is 48.

The spelling of 450433025155551 in words is "four hundred fifty trillion, four hundred thirty-three billion, twenty-five million, one hundred fifty-five thousand, five hundred fifty-one".