53486790 has 32 divisors (see below), whose sum is σ = 146707200. Its totient is φ = 12225504.

The previous prime is 53486789. The next prime is 53486791. The reversal of 53486790 is 9768435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53486789) and next prime (53486791).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53486791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127140 + ... + 127559.

It is an arithmetic number, because the mean of its divisors is an integer number (4584600).

Almost surely, 2^53486790 is an apocalyptic number.

53486790 is an abundant number, since it is smaller than the sum of its proper divisors (93220410).

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

53486790 is a wasteful number, since it uses less digits than its factorization.

53486790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254716.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 53486790 is about 7313.4663464051. The cubic root of 53486790 is about 376.7750864790.

The spelling of 53486790 in words is "fifty-three million, four hundred eighty-six thousand, seven hundred ninety".