400350125537 has 2 divisors, whose sum is σ = 400350125538. Its totient is φ = 400350125536.

The previous prime is 400350125507. The next prime is 400350125543. The reversal of 400350125537 is 735521053004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203080014736 + 197270110801 = 450644^2 + 444151^2 .

It is a cyclic number.

It is not a de Polignac number, because 400350125537 - 2¹² = 400350121441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400350125497 and 400350125506.

It is not a weakly prime, because it can be changed into another prime (400350125507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200175062768 + 200175062769.

It is an arithmetic number, because the mean of its divisors is an integer number (200175062769).

Almost surely, 2^400350125537 is an apocalyptic number.

It is an amenable number.

400350125537 is a deficient number, since it is larger than the sum of its proper divisors (1).

400350125537 is an equidigital number, since it uses as much as digits as its factorization.

400350125537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 400350125537 in words is "four hundred billion, three hundred fifty million, one hundred twenty-five thousand, five hundred thirty-seven".