53311554 has 16 divisors (see below), whose sum is σ = 118470240. Its totient is φ = 17770500.

The previous prime is 53311553. The next prime is 53311613. The reversal of 53311554 is 45511335.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53311553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493572 + ... + 493679.

It is an arithmetic number, because the mean of its divisors is an integer number (7404390).

Almost surely, 2^53311554 is an apocalyptic number.

53311554 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

53311554 is an abundant number, since it is smaller than the sum of its proper divisors (65158686).

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

53311554 is a wasteful number, since it uses less digits than its factorization.

53311554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987262 (or 987256 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 53311554 is about 7301.4761521216. The cubic root of 53311554 is about 376.3631667329.

Adding to 53311554 its reverse (45511335), we get a palindrome (98822889).

The spelling of 53311554 in words is "fifty-three million, three hundred eleven thousand, five hundred fifty-four".