2455978507 has 4 divisors (see below), whose sum is σ = 2463875856. Its totient is φ = 2448081160.

The previous prime is 2455978487. The next prime is 2455978529. The reversal of 2455978507 is 7058795542.

It is a happy number.

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 2455978507 - 2¹¹ = 2455976459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2455970507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3948208 + ... + 3948829.

It is an arithmetic number, because the mean of its divisors is an integer number (615968964).

Almost surely, 2^2455978507 is an apocalyptic number.

2455978507 is a deficient number, since it is larger than the sum of its proper divisors (7897349).

2455978507 is an equidigital number, since it uses as much as digits as its factorization.

2455978507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7897348.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The square root of 2455978507 is about 49557.8299262589. The cubic root of 2455978507 is about 1349.1954066155.

The spelling of 2455978507 in words is "two billion, four hundred fifty-five million, nine hundred seventy-eight thousand, five hundred seven".