1955617152 has 64 divisors (see below), whose sum is σ = 5199213360. Its totient is φ = 651294720.

The previous prime is 1955617133. The next prime is 1955617171. The reversal of 1955617152 is 2517165591.

It is an interprime number because it is at equal distance from previous prime (1955617133) and next prime (1955617171).

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1955617152² = 7648876890393182208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851718 + ... + 854010.

Almost surely, 2^1955617152 is an apocalyptic number.

1955617152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1955617152 is an abundant number, since it is smaller than the sum of its proper divisors (3243596208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1955617152 is a wasteful number, since it uses less digits than its factorization.

1955617152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531 (or 4519 counting only the distinct ones).

The product of its digits is 94500, while the sum is 42.

The square root of 1955617152 is about 44222.3603169256. The cubic root of 1955617152 is about 1250.5314331244.

The spelling of 1955617152 in words is "one billion, nine hundred fifty-five million, six hundred seventeen thousand, one hundred fifty-two".