551480140 has 48 divisors (see below), whose sum is σ = 1194020352. Its totient is φ = 213841856.

The previous prime is 551480129. The next prime is 551480147. The reversal of 551480140 is 41084155.

It is a junction number, because it is equal to n+sod(n) for n = 551480099 and 551480108.

It is not an unprimeable number, because it can be changed into a prime (551480147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97839 + ... + 103321.

It is an arithmetic number, because the mean of its divisors is an integer number (24875424).

Almost surely, 2^551480140 is an apocalyptic number.

It is an amenable number.

551480140 is an abundant number, since it is smaller than the sum of its proper divisors (642540212).

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

551480140 is a wasteful number, since it uses less digits than its factorization.

551480140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5644 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 551480140 is about 23483.6142874133. The cubic root of 551480140 is about 820.0555881411.

The spelling of 551480140 in words is "five hundred fifty-one million, four hundred eighty thousand, one hundred forty".