61122025 has 6 divisors (see below), whose sum is σ = 75791342. Its totient is φ = 48897600.

The previous prime is 61122013. The next prime is 61122029. The reversal of 61122025 is 52022116.

61122025 = T₁₂₃₉ + T₁₂₄₀ + ... + T₁₃₁₃.

It can be written as a sum of positive squares in 3 ways, for example, as 17614809 + 43507216 = 4197^2 + 6596^2 .

It is not a de Polignac number, because 61122025 - 2⁷ = 61121897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61121993 and 61122011.

It is not an unprimeable number, because it can be changed into a prime (61122029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222416 + ... + 1222465.

Almost surely, 2^61122025 is an apocalyptic number.

It is an amenable number.

61122025 is a deficient number, since it is larger than the sum of its proper divisors (14669317).

61122025 is a wasteful number, since it uses less digits than its factorization.

61122025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444891 (or 2444886 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61122025 is about 7818.0576232207. The cubic root of 61122025 is about 393.9120304002.

Subtracting from 61122025 its reverse (52022116), we obtain a palindrome (9099909).

The spelling of 61122025 in words is "sixty-one million, one hundred twenty-two thousand, twenty-five".