990880053 has 4 divisors (see below), whose sum is σ = 1321173408. Its totient is φ = 660586700.

The previous prime is 990880049. The next prime is 990880057. The reversal of 990880053 is 350088099.

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 an interprime number because it is at equal distance from previous prime (990880049) and next prime (990880057).

It is a cyclic number.

It is not a de Polignac number, because 990880053 - 2² = 990880049 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 990879987 and 990880014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990880057) 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, 165146673 + ... + 165146678.

It is an arithmetic number, because the mean of its divisors is an integer number (330293352).

Almost surely, 2^990880053 is an apocalyptic number.

It is an amenable number.

990880053 is a deficient number, since it is larger than the sum of its proper divisors (330293355).

990880053 is a wasteful number, since it uses less digits than its factorization.

990880053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330293354.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 990880053 is about 31478.2472987300. The cubic root of 990880053 is about 996.9507290642.

The spelling of 990880053 in words is "nine hundred ninety million, eight hundred eighty thousand, fifty-three".