61625005 has 24 divisors (see below), whose sum is σ = 80676648. Its totient is φ = 45167616.

The previous prime is 61624987. The next prime is 61625023. The reversal of 61625005 is 50052616.

It is an interprime number because it is at equal distance from previous prime (61624987) and next prime (61625023).

It can be written as a sum of positive squares in 12 ways, for example, as 59074596 + 2550409 = 7686^2 + 1597^2 .

It is not a de Polignac number, because 61625005 - 2⁷ = 61624877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196729 + ... + 197041.

It is an arithmetic number, because the mean of its divisors is an integer number (3361527).

Almost surely, 2^61625005 is an apocalyptic number.

61625005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61625005 is a deficient number, since it is larger than the sum of its proper divisors (19051643).

61625005 is a wasteful number, since it uses less digits than its factorization.

61625005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 61625005 is about 7850.1595525187. The cubic root of 61625005 is about 394.9895954104.

The spelling of 61625005 in words is "sixty-one million, six hundred twenty-five thousand, five".