551061025 has 12 divisors (see below), whose sum is σ = 713025792. Its totient is φ = 421681040.

The previous prime is 551060963. The next prime is 551061029. The reversal of 551061025 is 520160155.

It is not a de Polignac number, because 551061025 - 2⁷ = 551060897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551061029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 478609 + ... + 479758.

It is an arithmetic number, because the mean of its divisors is an integer number (59418816).

Almost surely, 2^551061025 is an apocalyptic number.

It is an amenable number.

551061025 is a deficient number, since it is larger than the sum of its proper divisors (161964767).

551061025 is a wasteful number, since it uses less digits than its factorization.

551061025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958400 (or 958395 counting only the distinct ones).

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

The square root of 551061025 is about 23474.6890288242. The cubic root of 551061025 is about 819.8477929867.

The spelling of 551061025 in words is "five hundred fifty-one million, sixty-one thousand, twenty-five".