52403555 has 4 divisors (see below), whose sum is σ = 62884272. Its totient is φ = 41922840.

The previous prime is 52403513. The next prime is 52403557. The reversal of 52403555 is 55530425.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-52403555 is a prime.

It is a super-2 number, since 2×52403555² = 5492265153276050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52403557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5240351 + ... + 5240360.

It is an arithmetic number, because the mean of its divisors is an integer number (15721068).

Almost surely, 2^52403555 is an apocalyptic number.

52403555 is a deficient number, since it is larger than the sum of its proper divisors (10480717).

52403555 is a wasteful number, since it uses less digits than its factorization.

52403555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10480716.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 52403555 is about 7239.0299764540. The cubic root of 52403555 is about 374.2141885586.

The spelling of 52403555 in words is "fifty-two million, four hundred three thousand, five hundred fifty-five".