994531550 has 12 divisors (see below), whose sum is σ = 1849828776. Its totient is φ = 397812600.

The previous prime is 994531543. The next prime is 994531561. The reversal of 994531550 is 55135499.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 994531498 and 994531507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9945266 + ... + 9945365.

It is an arithmetic number, because the mean of its divisors is an integer number (154152398).

Almost surely, 2^994531550 is an apocalyptic number.

994531550 is a deficient number, since it is larger than the sum of its proper divisors (855297226).

994531550 is a wasteful number, since it uses less digits than its factorization.

994531550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890643 (or 19890638 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 994531550 is about 31536.1942852970. The cubic root of 994531550 is about 998.1738505414.

The spelling of 994531550 in words is "nine hundred ninety-four million, five hundred thirty-one thousand, five hundred fifty".