1056780254 has 4 divisors (see below), whose sum is σ = 1585170384. Its totient is φ = 528390126.

The previous prime is 1056780253. The next prime is 1056780281. The reversal of 1056780254 is 4520876501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1056780254² = 2233569010488609032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056780253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264195062 + ... + 264195065.

It is an arithmetic number, because the mean of its divisors is an integer number (396292596).

Almost surely, 2^1056780254 is an apocalyptic number.

1056780254 is a deficient number, since it is larger than the sum of its proper divisors (528390130).

1056780254 is an equidigital number, since it uses as much as digits as its factorization.

1056780254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528390129.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 1056780254 is about 32508.1567302731. The cubic root of 1056780254 is about 1018.5794186947.

The spelling of 1056780254 in words is "one billion, fifty-six million, seven hundred eighty thousand, two hundred fifty-four".