2520164451 has 16 divisors (see below), whose sum is σ = 3842820864. Its totient is φ = 1439130144.

The previous prime is 2520164447. The next prime is 2520164459. The reversal of 2520164451 is 1544610252.

It is not a de Polignac number, because 2520164451 - 2² = 2520164447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2520164459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7416 + ... + 71381.

It is an arithmetic number, because the mean of its divisors is an integer number (240176304).

Almost surely, 2^2520164451 is an apocalyptic number.

2520164451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2520164451 is a deficient number, since it is larger than the sum of its proper divisors (1322656413).

2520164451 is a wasteful number, since it uses less digits than its factorization.

2520164451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80330.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2520164451 is about 50201.2395364895. The cubic root of 2520164451 is about 1360.8480241275.

The spelling of 2520164451 in words is "two billion, five hundred twenty million, one hundred sixty-four thousand, four hundred fifty-one".