1250504961 has 16 divisors (see below), whose sum is σ = 1711886400. Its totient is φ = 811489280.

The previous prime is 1250504953. The next prime is 1250504987. The reversal of 1250504961 is 1694050521.

It is a cyclic number.

It is not a de Polignac number, because 1250504961 - 2³ = 1250504953 is a prime.

It is a super-2 number, since 2×1250504961² = 3127525314971223042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1250504161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43906 + ... + 66548.

It is an arithmetic number, because the mean of its divisors is an integer number (106992900).

Almost surely, 2^1250504961 is an apocalyptic number.

It is an amenable number.

1250504961 is a deficient number, since it is larger than the sum of its proper divisors (461381439).

1250504961 is a wasteful number, since it uses less digits than its factorization.

1250504961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23136.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1250504961 is about 35362.4795652115. The cubic root of 1250504961 is about 1077.3623795540.

The spelling of 1250504961 in words is "one billion, two hundred fifty million, five hundred four thousand, nine hundred sixty-one".