5625513421 has 4 divisors (see below), whose sum is σ = 6136923744. Its totient is φ = 5114103100.

The previous prime is 5625513419. The next prime is 5625513427. The reversal of 5625513421 is 1243155265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5625513421 - 2¹ = 5625513419 is a prime.

It is a super-2 number, since 2×5625513421² = 63292802499702246482, 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 (5625513427) 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, 255705145 + ... + 255705166.

It is an arithmetic number, because the mean of its divisors is an integer number (1534230936).

Almost surely, 2^5625513421 is an apocalyptic number.

It is an amenable number.

5625513421 is a deficient number, since it is larger than the sum of its proper divisors (511410323).

5625513421 is a wasteful number, since it uses less digits than its factorization.

5625513421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511410322.

The product of its digits is 36000, while the sum is 34.

The square root of 5625513421 is about 75003.4227285662. The cubic root of 5625513421 is about 1778.5007597460.

Adding to 5625513421 its reverse (1243155265), we get a palindrome (6868668686).

The spelling of 5625513421 in words is "five billion, six hundred twenty-five million, five hundred thirteen thousand, four hundred twenty-one".