2521422837 has 10 divisors (see below), whose sum is σ = 3766570038. Its totient is φ = 1680948504.

The previous prime is 2521422833. The next prime is 2521422877. The reversal of 2521422837 is 7382241252.

It can be written as a sum of positive squares in only one way, i.e., 2424479121 + 96943716 = 49239^2 + 9846^2 .

It is not a de Polignac number, because 2521422837 - 2² = 2521422833 is a prime.

It is a super-3 number, since 3×2521422837³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521422833) 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 9 ways as a sum of consecutive naturals, for example, 15564258 + ... + 15564419.

Almost surely, 2^2521422837 is an apocalyptic number.

2521422837 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2521422837 is a deficient number, since it is larger than the sum of its proper divisors (1245147201).

2521422837 is an equidigital number, since it uses as much as digits as its factorization.

2521422837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31128689 (or 31128680 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2521422837 is about 50213.7713879370. The cubic root of 2521422837 is about 1361.0744891309.

The spelling of 2521422837 in words is "two billion, five hundred twenty-one million, four hundred twenty-two thousand, eight hundred thirty-seven".