10551961 has 4 divisors (see below), whose sum is σ = 12059392. Its totient is φ = 9044532.

The previous prime is 10551953. The next prime is 10551977. The reversal of 10551961 is 16915501.

10551961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 10551961 - 2³ = 10551953 is a prime.

It is a super-2 number, since 2×10551961² = 222687761891042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10551941) 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, 753705 + ... + 753718.

It is an arithmetic number, because the mean of its divisors is an integer number (3014848).

Almost surely, 2^10551961 is an apocalyptic number.

It is an amenable number.

10551961 is a deficient number, since it is larger than the sum of its proper divisors (1507431).

10551961 is an equidigital number, since it uses as much as digits as its factorization.

10551961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507430.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 10551961 is about 3248.3782107384. The cubic root of 10551961 is about 219.3365757926.

The spelling of 10551961 in words is "ten million, five hundred fifty-one thousand, nine hundred sixty-one".