551151340 has 24 divisors (see below), whose sum is σ = 1158185952. Its totient is φ = 220314240.

The previous prime is 551151317. The next prime is 551151379. The reversal of 551151340 is 43151155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24825 + ... + 41455.

It is an arithmetic number, because the mean of its divisors is an integer number (48257748).

Almost surely, 2^551151340 is an apocalyptic number.

It is an amenable number.

551151340 is an abundant number, since it is smaller than the sum of its proper divisors (607034612).

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

551151340 is a wasteful number, since it uses less digits than its factorization.

551151340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18297 (or 18295 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 551151340 is about 23476.6126176670. The cubic root of 551151340 is about 819.8925796227.

The spelling of 551151340 in words is "five hundred fifty-one million, one hundred fifty-one thousand, three hundred forty".