551024540 has 24 divisors (see below), whose sum is σ = 1262347632. Its totient is φ = 200372480.

The previous prime is 551024533. The next prime is 551024557. The reversal of 551024540 is 45420155.

It is a congruent 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, 1252109 + ... + 1252548.

It is an arithmetic number, because the mean of its divisors is an integer number (52597818).

Almost surely, 2^551024540 is an apocalyptic number.

It is an amenable number.

551024540 is an abundant number, since it is smaller than the sum of its proper divisors (711323092).

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

551024540 is a wasteful number, since it uses less digits than its factorization.

551024540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504677 (or 2504675 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 551024540 is about 23473.9119023651. The cubic root of 551024540 is about 819.8296989187.

Adding to 551024540 its reverse (45420155), we get a palindrome (596444695).

The spelling of 551024540 in words is "five hundred fifty-one million, twenty-four thousand, five hundred forty".