2351661025 has 12 divisors (see below), whose sum is σ = 3332639872. Its totient is φ = 1612567440.

The previous prime is 2351660977. The next prime is 2351661031. The reversal of 2351661025 is 5201661532.

It is not a de Polignac number, because 2351661025 - 2⁹ = 2351660513 is a prime.

It is a Duffinian 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, 6718857 + ... + 6719206.

Almost surely, 2^2351661025 is an apocalyptic number.

2351661025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2351661025 is a deficient number, since it is larger than the sum of its proper divisors (980978847).

2351661025 is a wasteful number, since it uses less digits than its factorization.

2351661025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438080 (or 13438075 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2351661025 is about 48493.9277126528. The cubic root of 2351661025 is about 1329.8160608307.

The spelling of 2351661025 in words is "two billion, three hundred fifty-one million, six hundred sixty-one thousand, twenty-five".