53442700 has 36 divisors (see below), whose sum is σ = 117058480. Its totient is φ = 21176640.

The previous prime is 53442673. The next prime is 53442733. The reversal of 53442700 is 724435.

It is a super-2 number, since 2×53442700² = 5712244366580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8449 + ... + 13351.

Almost surely, 2^53442700 is an apocalyptic number.

53442700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53442700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58529240).

53442700 is an abundant number, since it is smaller than the sum of its proper divisors (63615780).

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

53442700 is a wasteful number, since it uses less digits than its factorization.

53442700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 5019 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 53442700 is about 7310.4514224499. The cubic root of 53442700 is about 376.6715308149.

It can be divided in two parts, 534 and 42700, that added together give a palindrome (43234).

The spelling of 53442700 in words is "fifty-three million, four hundred forty-two thousand, seven hundred".