10551997 has 4 divisors (see below), whose sum is σ = 10892416. Its totient is φ = 10211580.

The previous prime is 10551991. The next prime is 10552007. The reversal of 10551997 is 79915501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10551997 - 2⁷ = 10551869 is a prime.

It is a super-2 number, since 2×10551997² = 222689281376018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10551991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170163 + ... + 170224.

It is an arithmetic number, because the mean of its divisors is an integer number (2723104).

Almost surely, 2^10551997 is an apocalyptic number.

It is an amenable number.

10551997 is a deficient number, since it is larger than the sum of its proper divisors (340419).

10551997 is an equidigital number, since it uses as much as digits as its factorization.

10551997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340418.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 10551997 is about 3248.3837519603. The cubic root of 10551997 is about 219.3368252283.

The spelling of 10551997 in words is "ten million, five hundred fifty-one thousand, nine hundred ninety-seven".