53400435 has 32 divisors (see below), whose sum is σ = 95738112. Its totient is φ = 25188480.

The previous prime is 53400433. The next prime is 53400439.

It is a happy number.

53400435 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53400435 - 2¹ = 53400433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53400433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1732 + ... + 10478.

It is an arithmetic number, because the mean of its divisors is an integer number (2991816).

Almost surely, 2^53400435 is an apocalyptic number.

53400435 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53400435 is a deficient number, since it is larger than the sum of its proper divisors (42337677).

53400435 is a wasteful number, since it uses less digits than its factorization.

53400435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53400435 is about 7307.5601263349. The cubic root of 53400435 is about 376.5722081082.

It can be divided in two parts, 53400 and 435, that added together give a palindrome (53835).

The spelling of 53400435 in words is "fifty-three million, four hundred thousand, four hundred thirty-five".