1951054550 has 24 divisors (see below), whose sum is σ = 3697437456. Its totient is φ = 765695840.

The previous prime is 1951054537. The next prime is 1951054559. The reversal of 1951054550 is 554501591.

It is a super-2 number, since 2×1951054550² = 7613227714151405000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1951054550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951054559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365474 + ... + 370773.

It is an arithmetic number, because the mean of its divisors is an integer number (154059894).

Almost surely, 2^1951054550 is an apocalyptic number.

1951054550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1951054550 is a deficient number, since it is larger than the sum of its proper divisors (1746382906).

1951054550 is a wasteful number, since it uses less digits than its factorization.

1951054550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736312 (or 736307 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1951054550 is about 44170.7431452087. The cubic root of 1951054550 is about 1249.5581478317.

The spelling of 1951054550 in words is "one billion, nine hundred fifty-one million, fifty-four thousand, five hundred fifty".