545624251 has 2 divisors, whose sum is σ = 545624252. Its totient is φ = 545624250.

The previous prime is 545624227. The next prime is 545624257. The reversal of 545624251 is 152426545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545624251 - 2¹³ = 545616059 is a prime.

It is a super-2 number, since 2×545624251² = 595411646558622002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545624257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272812125 + 272812126.

It is an arithmetic number, because the mean of its divisors is an integer number (272812126).

Almost surely, 2^545624251 is an apocalyptic number.

545624251 is a deficient number, since it is larger than the sum of its proper divisors (1).

545624251 is an equidigital number, since it uses as much as digits as its factorization.

545624251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 34.

The square root of 545624251 is about 23358.6012209636. The cubic root of 545624251 is about 817.1426680734.

The spelling of 545624251 in words is "five hundred forty-five million, six hundred twenty-four thousand, two hundred fifty-one".