1953974225 has 18 divisors (see below), whose sum is σ = 2818509894. Its totient is φ = 1339867200.

The previous prime is 1953974219. The next prime is 1953974251. The reversal of 1953974225 is 5224793591.

It can be written as a sum of positive squares in 3 ways, for example, as 558802321 + 1395171904 = 23639^2 + 37352^2 .

It is not a de Polignac number, because 1953974225 - 2⁸ = 1953973969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1953974225.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 796316 + ... + 798765.

It is an arithmetic number, because the mean of its divisors is an integer number (156583883).

Almost surely, 2^1953974225 is an apocalyptic number.

It is an amenable number.

1953974225 is a deficient number, since it is larger than the sum of its proper divisors (864535669).

1953974225 is a wasteful number, since it uses less digits than its factorization.

1953974225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595105 (or 1595093 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The square root of 1953974225 is about 44203.7806641016. The cubic root of 1953974225 is about 1250.1811417489.

The spelling of 1953974225 in words is "one billion, nine hundred fifty-three million, nine hundred seventy-four thousand, two hundred twenty-five".