1025415953 has 4 divisors (see below), whose sum is σ = 1027218660. Its totient is φ = 1023613248.

The previous prime is 1025415949. The next prime is 1025415961. The reversal of 1025415953 is 3595145201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 651883024 + 373532929 = 25532^2 + 19327^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025415953 - 2² = 1025415949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025415913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900500 + ... + 901637.

It is an arithmetic number, because the mean of its divisors is an integer number (256804665).

Almost surely, 2^1025415953 is an apocalyptic number.

It is an amenable number.

1025415953 is a deficient number, since it is larger than the sum of its proper divisors (1802707).

1025415953 is an equidigital number, since it uses as much as digits as its factorization.

1025415953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802706.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1025415953 is about 32022.1166227344. The cubic root of 1025415953 is about 1008.4012064110.

The spelling of 1025415953 in words is "one billion, twenty-five million, four hundred fifteen thousand, nine hundred fifty-three".