545403051 has 24 divisors (see below), whose sum is σ = 839076784. Its totient is φ = 353769120.

The previous prime is 545403041. The next prime is 545403073. The reversal of 545403051 is 150304545.

545403051 is a `hidden beast` number, since 545 + 40 + 30 + 51 = 666.

It is not a de Polignac number, because 545403051 - 2¹⁵ = 545370283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545403031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21340 + ... + 39321.

Almost surely, 2^545403051 is an apocalyptic number.

545403051 is a deficient number, since it is larger than the sum of its proper divisors (293673733).

545403051 is an equidigital number, since it uses as much as digits as its factorization.

545403051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60713 (or 60701 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 545403051 is about 23353.8658684167. The cubic root of 545403051 is about 817.0322279739.

Adding to 545403051 its reverse (150304545), we get a palindrome (695707596).

The spelling of 545403051 in words is "five hundred forty-five million, four hundred three thousand, fifty-one".