557949754 has 4 divisors (see below), whose sum is σ = 836924634. Its totient is φ = 278974876.

The previous prime is 557949727. The next prime is 557949767. The reversal of 557949754 is 457949755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 457949755 = 5 ⋅91589951.

It can be written as a sum of positive squares in only one way, i.e., 553425625 + 4524129 = 23525^2 + 2127^2 .

It is a super-2 number, since 2×557949754² = 622615855977321032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557949695 and 557949704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139487437 + ... + 139487440.

Almost surely, 2^557949754 is an apocalyptic number.

557949754 is a deficient number, since it is larger than the sum of its proper divisors (278974880).

557949754 is a wasteful number, since it uses less digits than its factorization.

557949754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278974879.

The product of its digits is 7938000, while the sum is 55.

The square root of 557949754 is about 23620.9600566954. The cubic root of 557949754 is about 823.2499193014.

Subtracting from 557949754 its reverse (457949755), we obtain a palindrome (99999999).

The spelling of 557949754 in words is "five hundred fifty-seven million, nine hundred forty-nine thousand, seven hundred fifty-four".