532401557 has 2 divisors, whose sum is σ = 532401558. Its totient is φ = 532401556.

The previous prime is 532401509. The next prime is 532401559. The reversal of 532401557 is 755104235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532040356 + 361201 = 23066^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 532401557 - 2¹⁴ = 532385173 is a prime.

Together with 532401559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532401559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266200778 + 266200779.

It is an arithmetic number, because the mean of its divisors is an integer number (266200779).

Almost surely, 2^532401557 is an apocalyptic number.

It is an amenable number.

532401557 is a deficient number, since it is larger than the sum of its proper divisors (1).

532401557 is an equidigital number, since it uses as much as digits as its factorization.

532401557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 532401557 is about 23073.8283992926. The cubic root of 532401557 is about 810.4877197879.

The spelling of 532401557 in words is "five hundred thirty-two million, four hundred one thousand, five hundred fifty-seven".