61202225 has 36 divisors (see below), whose sum is σ = 90244224. Its totient is φ = 41035680.

The previous prime is 61202143. The next prime is 61202243. The reversal of 61202225 is 52220216.

It is not a de Polignac number, because 61202225 - 2⁸ = 61201969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61202197 and 61202206.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57044 + ... + 58106.

It is an arithmetic number, because the mean of its divisors is an integer number (2506784).

Almost surely, 2^61202225 is an apocalyptic number.

It is an amenable number.

61202225 is a deficient number, since it is larger than the sum of its proper divisors (29041999).

61202225 is a wasteful number, since it uses less digits than its factorization.

61202225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 61202225 is about 7823.1850930423. The cubic root of 61202225 is about 394.0842429396.

Subtracting from 61202225 its reverse (52220216), we obtain a square (8982009 = 2997²).

The spelling of 61202225 in words is "sixty-one million, two hundred two thousand, two hundred twenty-five".