551233480 has 32 divisors (see below), whose sum is σ = 1417458240. Its totient is φ = 188994240.

The previous prime is 551233471. The next prime is 551233489. The reversal of 551233480 is 84332155.

It is an interprime number because it is at equal distance from previous prime (551233471) and next prime (551233489).

It is not an unprimeable number, because it can be changed into a prime (551233489) 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, 984066 + ... + 984625.

It is an arithmetic number, because the mean of its divisors is an integer number (44295570).

Almost surely, 2^551233480 is an apocalyptic number.

It is an amenable number.

551233480 is an abundant number, since it is smaller than the sum of its proper divisors (866224760).

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

551233480 is a wasteful number, since it uses less digits than its factorization.

551233480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968709 (or 1968705 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 551233480 is about 23478.3619530835. The cubic root of 551233480 is about 819.9333080799.

The spelling of 551233480 in words is "five hundred fifty-one million, two hundred thirty-three thousand, four hundred eighty".