551013125 has 40 divisors (see below), whose sum is σ = 752477880. Its totient is φ = 400896000.

The previous prime is 551013121. The next prime is 551013143. The reversal of 551013125 is 521310155.

It is a happy number.

It can be written as a sum of positive squares in 20 ways, for example, as 476898244 + 74114881 = 21838^2 + 8609^2 .

It is not a de Polignac number, because 551013125 - 2² = 551013121 is a prime.

It is a super-3 number, since 3×551013125³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 551013125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551013121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 592661 + ... + 593589.

It is an arithmetic number, because the mean of its divisors is an integer number (18811947).

Almost surely, 2^551013125 is an apocalyptic number.

It is an amenable number.

551013125 is a deficient number, since it is larger than the sum of its proper divisors (201464755).

551013125 is an equidigital number, since it uses as much as digits as its factorization.

551013125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 551013125 is about 23473.6687588455. The cubic root of 551013125 is about 819.8240376944.

The spelling of 551013125 in words is "five hundred fifty-one million, thirteen thousand, one hundred twenty-five".