5521251512 has 32 divisors (see below), whose sum is σ = 11896641120. Its totient is φ = 2353173120.

The previous prime is 5521251503. The next prime is 5521251523. The reversal of 5521251512 is 2151521255.

It is a super-2 number, since 2×5521251512² = 60968436517524572288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262223 + ... + 282494.

It is an arithmetic number, because the mean of its divisors is an integer number (371770035).

Almost surely, 2^5521251512 is an apocalyptic number.

It is an amenable number.

5521251512 is an abundant number, since it is smaller than the sum of its proper divisors (6375389608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5521251512 is a wasteful number, since it uses less digits than its factorization.

5521251512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544911 (or 544907 counting only the distinct ones).

The product of its digits is 5000, while the sum is 29.

The square root of 5521251512 is about 74305.1243993306. The cubic root of 5521251512 is about 1767.4447378636. Note that the first 3 decimals are identical.

Adding to 5521251512 its reverse (2151521255), we get a palindrome (7672772767).

The spelling of 5521251512 in words is "five billion, five hundred twenty-one million, two hundred fifty-one thousand, five hundred twelve".