1625151061 has 2 divisors, whose sum is σ = 1625151062. Its totient is φ = 1625151060.

The previous prime is 1625151049. The next prime is 1625151103. The reversal of 1625151061 is 1601515261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1622558961 + 2592100 = 40281^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625151061 - 2⁵ = 1625151029 is a prime.

It is a super-2 number, since 2×1625151061² = 5282231942138851442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1625151041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812575530 + 812575531.

It is an arithmetic number, because the mean of its divisors is an integer number (812575531).

Almost surely, 2^1625151061 is an apocalyptic number.

It is an amenable number.

1625151061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625151061 is an equidigital number, since it uses as much as digits as its factorization.

1625151061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1625151061 is about 40313.1623790543. The cubic root of 1625151061 is about 1175.7037729848.

The spelling of 1625151061 in words is "one billion, six hundred twenty-five million, one hundred fifty-one thousand, sixty-one".