551124227940 has 192 divisors, whose sum is σ = 1857147892992. Its totient is φ = 120320409600.

The previous prime is 551124227939. The next prime is 551124227959. The reversal of 551124227940 is 49722421155.

It is a happy number.

It is a super-2 number, since 2×551124227940² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551124227892 and 551124227901.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431557 + ... + 1135116.

It is an arithmetic number, because the mean of its divisors is an integer number (9672645276).

Almost surely, 2^551124227940 is an apocalyptic number.

It is an amenable number.

551124227940 is an abundant number, since it is smaller than the sum of its proper divisors (1306023665052).

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

551124227940 is a wasteful number, since it uses less digits than its factorization.

551124227940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566750 (or 1566748 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 551124227940 in words is "five hundred fifty-one billion, one hundred twenty-four million, two hundred twenty-seven thousand, nine hundred forty".