52420379 has 18 divisors (see below), whose sum is σ = 59786244. Its totient is φ = 45581040.

The previous prime is 52420363. The next prime is 52420391. The reversal of 52420379 is 97302425.

It is a happy number.

It is not a de Polignac number, because 52420379 - 2⁴ = 52420363 is a prime.

It is a super-2 number, since 2×52420379² = 5495792269007282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52420579) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 888452 + ... + 888510.

It is an arithmetic number, because the mean of its divisors is an integer number (3321458).

Almost surely, 2^52420379 is an apocalyptic number.

52420379 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

52420379 is a deficient number, since it is larger than the sum of its proper divisors (7365865).

52420379 is an equidigital number, since it uses as much as digits as its factorization.

52420379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 52420379 is about 7240.1919173458. The cubic root of 52420379 is about 374.2542310448.

The spelling of 52420379 in words is "fifty-two million, four hundred twenty thousand, three hundred seventy-nine".