551950540 has 24 divisors (see below), whose sum is σ = 1160151552. Its totient is φ = 220579200.

The previous prime is 551950507. The next prime is 551950541. The reversal of 551950540 is 45059155.

It is a junction number, because it is equal to n+sod(n) for n = 551950496 and 551950505.

It is not an unprimeable number, because it can be changed into a prime (551950541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11032 + ... + 35008.

It is an arithmetic number, because the mean of its divisors is an integer number (48339648).

Almost surely, 2^551950540 is an apocalyptic number.

It is an amenable number.

551950540 is an abundant number, since it is smaller than the sum of its proper divisors (608201012).

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

551950540 is a wasteful number, since it uses less digits than its factorization.

551950540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25137 (or 25135 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 551950540 is about 23493.6276466620. The cubic root of 551950540 is about 820.2886847919.

The spelling of 551950540 in words is "five hundred fifty-one million, nine hundred fifty thousand, five hundred forty".