31225000551 has 8 divisors (see below), whose sum is σ = 41634174960. Its totient is φ = 20816246592.

The previous prime is 31225000531. The next prime is 31225000559. The reversal of 31225000551 is 15500052213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31225000551 - 2⁷ = 31225000423 is a prime.

It is a super-3 number, since 3×31225000551³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31225000559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174235 + ... + 304643.

It is an arithmetic number, because the mean of its divisors is an integer number (5204271870).

Almost surely, 2^31225000551 is an apocalyptic number.

31225000551 is a deficient number, since it is larger than the sum of its proper divisors (10409174409).

31225000551 is a wasteful number, since it uses less digits than its factorization.

31225000551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210225.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 31225000551 its reverse (15500052213), we get a palindrome (46725052764).

The spelling of 31225000551 in words is "thirty-one billion, two hundred twenty-five million, five hundred fifty-one", and thus it is an aban number.