69053985 has 192 divisors, whose sum is σ = 170069760. Its totient is φ = 26127360.

The previous prime is 69053969. The next prime is 69053987. The reversal of 69053985 is 58935096.

It is not a de Polignac number, because 69053985 - 2⁴ = 69053969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 69053985.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69053987) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 945909 + ... + 945981.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^69053985 is an apocalyptic number.

69053985 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69053985 is an abundant number, since it is smaller than the sum of its proper divisors (101015775).

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

69053985 is a wasteful number, since it uses less digits than its factorization.

69053985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 69053985 is about 8309.8727427079. The cubic root of 69053985 is about 410.2635327361.

The spelling of 69053985 in words is "sixty-nine million, fifty-three thousand, nine hundred eighty-five".