7400220551 has 24 divisors (see below), whose sum is σ = 7909780944. Its totient is φ = 6919799040.

The previous prime is 7400220511. The next prime is 7400220587. The reversal of 7400220551 is 1550220047.

It is not a de Polignac number, because 7400220551 - 2¹⁴ = 7400204167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7400220551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400220511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3436091 + ... + 3438243.

It is an arithmetic number, because the mean of its divisors is an integer number (329574206).

Almost surely, 2^7400220551 is an apocalyptic number.

7400220551 is a deficient number, since it is larger than the sum of its proper divisors (509560393).

7400220551 is a wasteful number, since it uses less digits than its factorization.

7400220551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 7400220551 is about 86024.5345875233. The cubic root of 7400220551 is about 1948.7145199421.

Adding to 7400220551 its reverse (1550220047), we get a palindrome (8950440598).

The spelling of 7400220551 in words is "seven billion, four hundred million, two hundred twenty thousand, five hundred fifty-one".