2426405521 has 4 divisors (see below), whose sum is σ = 2428427044. Its totient is φ = 2424384000.

The previous prime is 2426405491. The next prime is 2426405533. The reversal of 2426405521 is 1255046242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87329025 + 2339076496 = 9345^2 + 48364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2426405521 - 2⁵ = 2426405489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2426405021) 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, 1008960 + ... + 1011361.

It is an arithmetic number, because the mean of its divisors is an integer number (607106761).

Almost surely, 2^2426405521 is an apocalyptic number.

It is an amenable number.

2426405521 is a deficient number, since it is larger than the sum of its proper divisors (2021523).

2426405521 is a wasteful number, since it uses less digits than its factorization.

2426405521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021522.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 2426405521 is about 49258.5578453125. The cubic root of 2426405521 is about 1343.7582032137.

The spelling of 2426405521 in words is "two billion, four hundred twenty-six million, four hundred five thousand, five hundred twenty-one".