545250031 has 4 divisors (see below), whose sum is σ = 545296752. Its totient is φ = 545203312.

The previous prime is 545250023. The next prime is 545250037. The reversal of 545250031 is 130052545.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 545250031 - 2³ = 545250023 is a prime.

It is a super-2 number, since 2×545250031² = 594595192611001922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545249978 and 545250005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545250037) 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, 10686 + ... + 34708.

It is an arithmetic number, because the mean of its divisors is an integer number (136324188).

Almost surely, 2^545250031 is an apocalyptic number.

545250031 is a deficient number, since it is larger than the sum of its proper divisors (46721).

545250031 is a wasteful number, since it uses less digits than its factorization.

545250031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46720.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 545250031 is about 23350.5895214660. The cubic root of 545250031 is about 816.9558111141.

The spelling of 545250031 in words is "five hundred forty-five million, two hundred fifty thousand, thirty-one".