1055698225 has 6 divisors (see below), whose sum is σ = 1309065830. Its totient is φ = 844558560.

The previous prime is 1055698213. The next prime is 1055698243. The reversal of 1055698225 is 5228965501.

It can be written as a sum of positive squares in 3 ways, for example, as 238424481 + 817273744 = 15441^2 + 28588^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1055698225 is a prime.

It is a super-2 number, since 2×1055698225² = 2228997484536301250, which contains 22 as substring.

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, 21113940 + ... + 21113989.

Almost surely, 2^1055698225 is an apocalyptic number.

It is an amenable number.

1055698225 is a deficient number, since it is larger than the sum of its proper divisors (253367605).

1055698225 is an equidigital number, since it uses as much as digits as its factorization.

1055698225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42227939 (or 42227934 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 1055698225 is about 32491.5100449333. The cubic root of 1055698225 is about 1018.2316614908.

The spelling of 1055698225 in words is "one billion, fifty-five million, six hundred ninety-eight thousand, two hundred twenty-five".