1056507247 has 8 divisors (see below), whose sum is σ = 1077416640. Its totient is φ = 1035634080.

The previous prime is 1056507239. The next prime is 1056507253. The reversal of 1056507247 is 7427056501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056507247 - 2³ = 1056507239 is a prime.

It is a super-2 number, since 2×1056507247² = 2232415125927038018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056507227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54154 + ... + 71032.

It is an arithmetic number, because the mean of its divisors is an integer number (134677080).

Almost surely, 2^1056507247 is an apocalyptic number.

1056507247 is a deficient number, since it is larger than the sum of its proper divisors (20909393).

1056507247 is a wasteful number, since it uses less digits than its factorization.

1056507247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18113.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 1056507247 is about 32503.9574052145. The cubic root of 1056507247 is about 1018.4916983890.

The spelling of 1056507247 in words is "one billion, fifty-six million, five hundred seven thousand, two hundred forty-seven".