545551415 has 4 divisors (see below), whose sum is σ = 654661704. Its totient is φ = 436441128.

The previous prime is 545551397. The next prime is 545551429. The reversal of 545551415 is 514155545.

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

It is a cyclic number.

It is not a de Polignac number, because 545551415 - 2⁸ = 545551159 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 3 ways as a sum of consecutive naturals, for example, 54555137 + ... + 54555146.

It is an arithmetic number, because the mean of its divisors is an integer number (163665426).

Almost surely, 2^545551415 is an apocalyptic number.

545551415 is a deficient number, since it is larger than the sum of its proper divisors (109110289).

545551415 is a wasteful number, since it uses less digits than its factorization.

545551415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109110288.

The product of its digits is 50000, while the sum is 35.

The square root of 545551415 is about 23357.0420858464. The cubic root of 545551415 is about 817.1063060216.

The spelling of 545551415 in words is "five hundred forty-five million, five hundred fifty-one thousand, four hundred fifteen".