3955801257 has 12 divisors (see below), whose sum is σ = 5962367424. Its totient is φ = 2522539800.

The previous prime is 3955801217. The next prime is 3955801309. The reversal of 3955801257 is 7521085593.

3955801257 is a `hidden beast` number, since 3 + 9 + 5 + 580 + 12 + 57 = 666.

It is not a de Polignac number, because 3955801257 - 2⁶ = 3955801193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3955801217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9554869 + ... + 9555282.

It is an arithmetic number, because the mean of its divisors is an integer number (496863952).

Almost surely, 2^3955801257 is an apocalyptic number.

It is an amenable number.

3955801257 is a deficient number, since it is larger than the sum of its proper divisors (2006566167).

3955801257 is a wasteful number, since it uses less digits than its factorization.

3955801257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19110180 (or 19110177 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 3955801257 is about 62895.1608392887. The cubic root of 3955801257 is about 1581.5326229047.

The spelling of 3955801257 in words is "three billion, nine hundred fifty-five million, eight hundred one thousand, two hundred fifty-seven".