10550554521 has 32 divisors (see below), whose sum is σ = 15409056768. Its totient is φ = 6381840960.

The previous prime is 10550554513. The next prime is 10550554529. The reversal of 10550554521 is 12545505501.

It is an interprime number because it is at equal distance from previous prime (10550554513) and next prime (10550554529).

It is not a de Polignac number, because 10550554521 - 2³ = 10550554513 is a prime.

It is a super-2 number, since 2×10550554521² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10550554529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1268386 + ... + 1276676.

It is an arithmetic number, because the mean of its divisors is an integer number (481533024).

Almost surely, 2^10550554521 is an apocalyptic number.

It is an amenable number.

10550554521 is a deficient number, since it is larger than the sum of its proper divisors (4858502247).

10550554521 is a wasteful number, since it uses less digits than its factorization.

10550554521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8861.

The product of its (nonzero) digits is 25000, while the sum is 33.

The spelling of 10550554521 in words is "ten billion, five hundred fifty million, five hundred fifty-four thousand, five hundred twenty-one".