7550345420 has 12 divisors (see below), whose sum is σ = 15855725424. Its totient is φ = 3020138160.

The previous prime is 7550345417. The next prime is 7550345437. The reversal of 7550345420 is 245430557.

It is a super-2 number, since 2×7550345420² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188758616 + ... + 188758655.

It is an arithmetic number, because the mean of its divisors is an integer number (1321310452).

Almost surely, 2^7550345420 is an apocalyptic number.

It is an amenable number.

7550345420 is an abundant number, since it is smaller than the sum of its proper divisors (8305380004).

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

7550345420 is a wasteful number, since it uses less digits than its factorization.

7550345420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377517280 (or 377517278 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 7550345420 is about 86892.7236309232. The cubic root of 7550345420 is about 1961.8039600696.

Adding to 7550345420 its reverse (245430557), we get a palindrome (7795775977).

The spelling of 7550345420 in words is "seven billion, five hundred fifty million, three hundred forty-five thousand, four hundred twenty".