53951887 has 8 divisors (see below), whose sum is σ = 61954560. Its totient is φ = 46465560.

The previous prime is 53951881. The next prime is 53951893. The reversal of 53951887 is 78815935.

It is an interprime number because it is at equal distance from previous prime (53951881) and next prime (53951893).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53951887 - 2³ = 53951879 is a prime.

It is a super-2 number, since 2×53951887² = 5821612221721538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53951881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128863 + ... + 129280.

It is an arithmetic number, because the mean of its divisors is an integer number (7744320).

Almost surely, 2^53951887 is an apocalyptic number.

53951887 is a deficient number, since it is larger than the sum of its proper divisors (8002673).

53951887 is a wasteful number, since it uses less digits than its factorization.

53951887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258173.

The product of its digits is 302400, while the sum is 46.

The square root of 53951887 is about 7345.1948238287. The cubic root of 53951887 is about 377.8640249801.

The spelling of 53951887 in words is "fifty-three million, nine hundred fifty-one thousand, eight hundred eighty-seven".