551603140 has 48 divisors (see below), whose sum is σ = 1293082560. Its totient is φ = 195914880.

The previous prime is 551603081. The next prime is 551603153. The reversal of 551603140 is 41306155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19695 + ... + 38614.

It is an arithmetic number, because the mean of its divisors is an integer number (26939220).

Almost surely, 2^551603140 is an apocalyptic number.

It is an amenable number.

551603140 is an abundant number, since it is smaller than the sum of its proper divisors (741479420).

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

551603140 is a wasteful number, since it uses less digits than its factorization.

551603140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58372 (or 58370 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 551603140 is about 23486.2329887106. The cubic root of 551603140 is about 820.1165509525.

Adding to 551603140 its reverse (41306155), we get a palindrome (592909295).

The spelling of 551603140 in words is "five hundred fifty-one million, six hundred three thousand, one hundred forty".