1988127525 has 12 divisors (see below), whose sum is σ = 3287037632. Its totient is φ = 1060334640.

The previous prime is 1988127499. The next prime is 1988127551. The reversal of 1988127525 is 5257218891.

It is an interprime number because it is at equal distance from previous prime (1988127499) and next prime (1988127551).

It is not a de Polignac number, because 1988127525 - 2⁷ = 1988127397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 13254109 + ... + 13254258.

Almost surely, 2^1988127525 is an apocalyptic number.

1988127525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1988127525 is a deficient number, since it is larger than the sum of its proper divisors (1298910107).

1988127525 is a wasteful number, since it uses less digits than its factorization.

1988127525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26508380 (or 26508375 counting only the distinct ones).

The product of its digits is 403200, while the sum is 48.

The square root of 1988127525 is about 44588.4236657902. The cubic root of 1988127525 is about 1257.4230368943.

The spelling of 1988127525 in words is "one billion, nine hundred eighty-eight million, one hundred twenty-seven thousand, five hundred twenty-five".