557902045 has 4 divisors (see below), whose sum is σ = 669482460. Its totient is φ = 446321632.

The previous prime is 557902001. The next prime is 557902061. The reversal of 557902045 is 540209755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540209755 = 5 ⋅108041951.

It can be written as a sum of positive squares in 2 ways, for example, as 275460409 + 282441636 = 16597^2 + 16806^2 .

It is a cyclic number.

It is not a de Polignac number, because 557902045 - 2⁷ = 557901917 is a prime.

It is a super-2 number, since 2×557902045² = 622509383630364050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557901995 and 557902013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55790200 + ... + 55790209.

It is an arithmetic number, because the mean of its divisors is an integer number (167370615).

Almost surely, 2^557902045 is an apocalyptic number.

It is an amenable number.

557902045 is a deficient number, since it is larger than the sum of its proper divisors (111580415).

557902045 is a wasteful number, since it uses less digits than its factorization.

557902045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111580414.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 557902045 is about 23619.9501481269. The cubic root of 557902045 is about 823.2264538969.

It can be divided in two parts, 5 and 57902045, that multiplied together give a square (289510225 = 17015²).

The spelling of 557902045 in words is "five hundred fifty-seven million, nine hundred two thousand, forty-five".