623025401 has 4 divisors (see below), whose sum is σ = 659673972. Its totient is φ = 586376832.

The previous prime is 623025343. The next prime is 623025413. The reversal of 623025401 is 104520326.

623025401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 242736400 + 380289001 = 15580^2 + 19501^2 .

It is a cyclic number.

It is not a de Polignac number, because 623025401 - 2¹⁸ = 622763257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623025451) 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, 18324260 + ... + 18324293.

It is an arithmetic number, because the mean of its divisors is an integer number (164918493).

Almost surely, 2^623025401 is an apocalyptic number.

It is an amenable number.

623025401 is a deficient number, since it is larger than the sum of its proper divisors (36648571).

623025401 is a wasteful number, since it uses less digits than its factorization.

623025401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36648570.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 623025401 is about 24960.4767782989. The cubic root of 623025401 is about 854.0866189585.

Adding to 623025401 its reverse (104520326), we get a palindrome (727545727).

The spelling of 623025401 in words is "six hundred twenty-three million, twenty-five thousand, four hundred one".