1054725985 has 16 divisors (see below), whose sum is σ = 1341639936. Its totient is φ = 793247488.

The previous prime is 1054725979. The next prime is 1054726003. The reversal of 1054725985 is 5895274501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054725985 is a prime.

It is a super-2 number, since 2×1054725985² = 2224893806868440450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73944 + ... + 87046.

It is an arithmetic number, because the mean of its divisors is an integer number (83852496).

Almost surely, 2^1054725985 is an apocalyptic number.

It is an amenable number.

1054725985 is a deficient number, since it is larger than the sum of its proper divisors (286913951).

1054725985 is a wasteful number, since it uses less digits than its factorization.

1054725985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14072.

The product of its (nonzero) digits is 504000, while the sum is 46.

The square root of 1054725985 is about 32476.5451518477. The cubic root of 1054725985 is about 1017.9189870339.

The spelling of 1054725985 in words is "one billion, fifty-four million, seven hundred twenty-five thousand, nine hundred eighty-five".