2478520007 has 4 divisors (see below), whose sum is σ = 2478665376. Its totient is φ = 2478374640.

The previous prime is 2478519977. The next prime is 2478520013. The reversal of 2478520007 is 7000258742.

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

It is a cyclic number.

It is not a de Polignac number, because 2478520007 - 2¹⁴ = 2478503623 is a prime.

It is a super-2 number, since 2×2478520007² = 12286122850198560098, 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 (2478520027) 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 3 ways as a sum of consecutive naturals, for example, 43094 + ... + 82547.

It is an arithmetic number, because the mean of its divisors is an integer number (619666344).

Almost surely, 2^2478520007 is an apocalyptic number.

2478520007 is a deficient number, since it is larger than the sum of its proper divisors (145369).

2478520007 is a wasteful number, since it uses less digits than its factorization.

2478520007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145368.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 2478520007 is about 49784.7366870610. The cubic root of 2478520007 is about 1353.3105775993.

Adding to 2478520007 its reverse (7000258742), we get a palindrome (9478778749).

The spelling of 2478520007 in words is "two billion, four hundred seventy-eight million, five hundred twenty thousand, seven".