1266525950 has 24 divisors (see below), whose sum is σ = 2363199192. Its totient is φ = 505005920.

The previous prime is 1266525943. The next prime is 1266525971. The reversal of 1266525950 is 595256621.

It is a junction number, because it is equal to n+sod(n) for n = 1266525898 and 1266525907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24104 + ... + 55803.

It is an arithmetic number, because the mean of its divisors is an integer number (98466633).

Almost surely, 2^1266525950 is an apocalyptic number.

1266525950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266525950 is a deficient number, since it is larger than the sum of its proper divisors (1096673242).

1266525950 is a wasteful number, since it uses less digits than its factorization.

1266525950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80236 (or 80231 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 1266525950 is about 35588.2838866951. The cubic root of 1266525950 is about 1081.9437874180.

The spelling of 1266525950 in words is "one billion, two hundred sixty-six million, five hundred twenty-five thousand, nine hundred fifty".