542253401 has 4 divisors (see below), whose sum is σ = 542530212. Its totient is φ = 541976592.

The previous prime is 542253373. The next prime is 542253421. The reversal of 542253401 is 104352245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104352245 = 5 ⋅20870449.

It can be written as a sum of positive squares in 2 ways, for example, as 324720400 + 217533001 = 18020^2 + 14749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542253401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542253421) 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, 135446 + ... + 139391.

It is an arithmetic number, because the mean of its divisors is an integer number (135632553).

Almost surely, 2^542253401 is an apocalyptic number.

It is an amenable number.

542253401 is a deficient number, since it is larger than the sum of its proper divisors (276811).

542253401 is a wasteful number, since it uses less digits than its factorization.

542253401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276810.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 542253401 is about 23286.3350701651. The cubic root of 542253401 is about 815.4564299458.

The spelling of 542253401 in words is "five hundred forty-two million, two hundred fifty-three thousand, four hundred one".