53985755690 has 32 divisors (see below), whose sum is σ = 100363484160. Its totient is φ = 20886364800.

The previous prime is 53985755647. The next prime is 53985755701. The reversal of 53985755690 is 9655758935.

It is a super-2 number, since 2×53985755690² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (62).

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, 536150 + ... + 628830.

It is an arithmetic number, because the mean of its divisors is an integer number (3136358880).

Almost surely, 2^53985755690 is an apocalyptic number.

53985755690 is a deficient number, since it is larger than the sum of its proper divisors (46377728470).

53985755690 is a wasteful number, since it uses less digits than its factorization.

53985755690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94598.

The product of its (nonzero) digits is 51030000, while the sum is 62.

The spelling of 53985755690 in words is "fifty-three billion, nine hundred eighty-five million, seven hundred fifty-five thousand, six hundred ninety".