1957023655 has 32 divisors (see below), whose sum is σ = 2621975040. Its totient is φ = 1395377280.

The previous prime is 1957023643. The next prime is 1957023661. The reversal of 1957023655 is 5563207591.

It is not a de Polignac number, because 1957023655 - 2¹¹ = 1957021607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125944 + ... + 140626.

It is an arithmetic number, because the mean of its divisors is an integer number (81936720).

Almost surely, 2^1957023655 is an apocalyptic number.

1957023655 is a deficient number, since it is larger than the sum of its proper divisors (664951385).

1957023655 is a wasteful number, since it uses less digits than its factorization.

1957023655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14791.

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 1957023655 is about 44238.2600810656. The cubic root of 1957023655 is about 1250.8311602822.

The spelling of 1957023655 in words is "one billion, nine hundred fifty-seven million, twenty-three thousand, six hundred fifty-five".