1025251755 has 48 divisors (see below), whose sum is σ = 1830216192. Its totient is φ = 489614400.

The previous prime is 1025251753. The next prime is 1025251763. The reversal of 1025251755 is 5571525201.

It is not a de Polignac number, because 1025251755 - 2¹ = 1025251753 is a prime.

It is a super-2 number, since 2×1025251755² = 2102282322261160050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1025251751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117390 + ... + 125820.

It is an arithmetic number, because the mean of its divisors is an integer number (38129504).

Almost surely, 2^1025251755 is an apocalyptic number.

1025251755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025251755 is a deficient number, since it is larger than the sum of its proper divisors (804964437).

1025251755 is a wasteful number, since it uses less digits than its factorization.

1025251755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8528 (or 8517 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 33.

The square root of 1025251755 is about 32019.5526983123. The cubic root of 1025251755 is about 1008.3473790514.

Adding to 1025251755 its reverse (5571525201), we get a palindrome (6596776956).

The spelling of 1025251755 in words is "one billion, twenty-five million, two hundred fifty-one thousand, seven hundred fifty-five".